This document is a chemistry exam paper containing multiple choice and short answer questions testing knowledge of stoichiometry, organic chemistry, acid-base reactions, and periodicity. The paper contains 9 questions with a total of 69 marks. It tests key chemistry concepts like mole calculations, empirical and molecular formula determination, acid-base and redox reactions, and periodic trends.
This document contains information about acids, bases and salts. It includes questions about determining the reactivity series of metals through displacement reactions and measuring cell voltages. It also discusses properties of specific acids like malonic acid and sulfuric acid, and preparation of salts through various methods like precipitation, neutralization and titration. Example reactions provided include the reaction of magnesium with acids, and the reaction of ethylamine with iron(III) chloride that forms a brown precipitate.
This document provides instructions for a chemistry exam. It specifies that students should write their identification on all work, use dark blue or black pen with pencil allowed for diagrams, and not use staples, paper clips, or correction fluid. It notes the exam contains multiple choice and written answer questions and that calculators and a periodic table are permitted. It reminds students to show working and use appropriate units, and to fasten all work together at the end.
This document contains a multi-part chemistry question about physical and chemical changes including:
1) Determining the reactivity series of metals through displacement reactions and measuring voltage in cells.
2) Questions about the dibasic acids malonic acid and sulfuric acid, including their properties and reactions.
3) The preparation of the insoluble salt silver(I) chromate by precipitation from solutions of silver(I) nitrate and potassium chromate.
4) Different methods for preparing salts, including titration, neutralization, and precipitation. The document contains chemistry questions and tables to complete.
This document contains information about alkenes from multiple chemistry question papers. It discusses topics such as:
- Industrial processes used to produce alkenes from petroleum.
- Polymerization of ethene and propene to form polymers.
- Reactions of alkenes to form esters, alcohols, and other products.
- Cracking of alkanes to produce alkenes.
- Addition reactions of alkenes and their use in making pesticides, polymers, and other compounds.
- Oxidation of alkenes to form carboxylic acids.
The document contains chemistry questions and problems relating to alkene structures, reactions, and properties over
The document contains a 9 question exam paper assessing knowledge of the periodic table and properties of group 1 metals, transition metals such as vanadium, and elements in period 2 such as carbon, nitrogen, fluorine and neon. Questions cover trends in physical and chemical properties, electronic configurations, oxidation states, bonding and structures.
This three sentence summary provides the high level information from the 10 page document:
The document appears to be from a chemistry exam consisting of multiple choice and free response questions covering topics like the production of ammonia, factors that affect reaction rates, properties and uses of compounds containing sulfur, and the structures and reactions of esters. The exam contains a periodic table and questions require students to write equations, describe processes, explain phenomena, and solve quantitative problems related to these chemistry concepts.
This document provides instructions for a chemistry exam. It tells students to write their identification information on all work submitted. It specifies to write in dark blue or black pen, and use a pencil for diagrams. Students should not use staples, paper clips, highlighters, glue, or correction fluid. They should answer all questions and may use a calculator. A periodic table is provided on page 16. Students should show their working and use appropriate units or they may lose marks. At the end, fasten all work securely together. The number of marks is given in brackets at the end of each question.
The document is a chemistry question paper that covers several topics related to stoichiometry and the preparation and properties of salts and metals. It contains multiple questions involving calculations related to reactions between calcium carbonate and hydrochloric acid, the preparation of nickel(II) chloride and potassium chloride salts, and the isolation of titanium from its ore. The questions assess understanding of reaction rates and stoichiometry, acid-base reactions, precipitation reactions, and the properties and uses of transition metals.
This document contains information about acids, bases and salts. It includes questions about determining the reactivity series of metals through displacement reactions and measuring cell voltages. It also discusses properties of specific acids like malonic acid and sulfuric acid, and preparation of salts through various methods like precipitation, neutralization and titration. Example reactions provided include the reaction of magnesium with acids, and the reaction of ethylamine with iron(III) chloride that forms a brown precipitate.
This document provides instructions for a chemistry exam. It specifies that students should write their identification on all work, use dark blue or black pen with pencil allowed for diagrams, and not use staples, paper clips, or correction fluid. It notes the exam contains multiple choice and written answer questions and that calculators and a periodic table are permitted. It reminds students to show working and use appropriate units, and to fasten all work together at the end.
This document contains a multi-part chemistry question about physical and chemical changes including:
1) Determining the reactivity series of metals through displacement reactions and measuring voltage in cells.
2) Questions about the dibasic acids malonic acid and sulfuric acid, including their properties and reactions.
3) The preparation of the insoluble salt silver(I) chromate by precipitation from solutions of silver(I) nitrate and potassium chromate.
4) Different methods for preparing salts, including titration, neutralization, and precipitation. The document contains chemistry questions and tables to complete.
This document contains information about alkenes from multiple chemistry question papers. It discusses topics such as:
- Industrial processes used to produce alkenes from petroleum.
- Polymerization of ethene and propene to form polymers.
- Reactions of alkenes to form esters, alcohols, and other products.
- Cracking of alkanes to produce alkenes.
- Addition reactions of alkenes and their use in making pesticides, polymers, and other compounds.
- Oxidation of alkenes to form carboxylic acids.
The document contains chemistry questions and problems relating to alkene structures, reactions, and properties over
The document contains a 9 question exam paper assessing knowledge of the periodic table and properties of group 1 metals, transition metals such as vanadium, and elements in period 2 such as carbon, nitrogen, fluorine and neon. Questions cover trends in physical and chemical properties, electronic configurations, oxidation states, bonding and structures.
This three sentence summary provides the high level information from the 10 page document:
The document appears to be from a chemistry exam consisting of multiple choice and free response questions covering topics like the production of ammonia, factors that affect reaction rates, properties and uses of compounds containing sulfur, and the structures and reactions of esters. The exam contains a periodic table and questions require students to write equations, describe processes, explain phenomena, and solve quantitative problems related to these chemistry concepts.
This document provides instructions for a chemistry exam. It tells students to write their identification information on all work submitted. It specifies to write in dark blue or black pen, and use a pencil for diagrams. Students should not use staples, paper clips, highlighters, glue, or correction fluid. They should answer all questions and may use a calculator. A periodic table is provided on page 16. Students should show their working and use appropriate units or they may lose marks. At the end, fasten all work securely together. The number of marks is given in brackets at the end of each question.
The document is a chemistry question paper that covers several topics related to stoichiometry and the preparation and properties of salts and metals. It contains multiple questions involving calculations related to reactions between calcium carbonate and hydrochloric acid, the preparation of nickel(II) chloride and potassium chloride salts, and the isolation of titanium from its ore. The questions assess understanding of reaction rates and stoichiometry, acid-base reactions, precipitation reactions, and the properties and uses of transition metals.
This document provides instructions for a chemistry exam. It consists of 14 printed pages and 2 blank pages. Students are instructed to write their identification information on all work submitted and to use dark blue or black pen, reserving pencil for diagrams. They are to answer all questions and show working where appropriate. A periodic table is provided on page 16. The number of marks for each question is provided in brackets at the end.
This document provides instructions for a chemistry exam, including:
- Write your details on all work submitted.
- Write in dark blue or black pen, use pencil for diagrams.
- Do not use staples, paper clips, etc.
- Answer all questions and show working.
- Electronic calculators and a periodic table are permitted.
- Fasten all work securely at the end.
The document is a chemistry exam paper containing multiple questions on topics related to electricity and chemistry. It includes questions about the extraction of zinc from zinc blende, the purification of zinc by electrolysis, corrosion of steel and its prevention, the extraction of iron in the blast furnace, and catalysts in chemical reactions. The questions require students to write word and ionic equations, explain observations, complete descriptions, and suggest explanations.
The document provides an overview of the Kjeldahl method for determining nitrogen content. It discusses the history of the method developed by Johan Kjeldahl in 1883. For over 130 years it has been an internationally accepted standard for determining nitrogen in various samples. The document outlines the typical procedures for Kjeldahl analysis including sample preparation, digestion, distillation, and titration. It also discusses parameters that affect the analysis and provides references for further information.
This document contains a 5-question stoichiometry exam with multiple parts to each question. The exam covers topics such as the law of constant composition, reduction and oxidation reactions, empirical and molecular formulas, limiting reagents, and balanced chemical equations. Students are asked to perform stoichiometric calculations, identify limiting reagents, write balanced equations, and determine empirical formulas from percentage compositions.
- The document is a chemistry exam paper assessing knowledge of particulate nature of matter including diffusion, Brownian motion, and properties of solids, liquids, and gases.
- It contains 5 multi-part questions testing understanding of acid-base reactions, properties of halogens, uses of selenium and sulfur, bonding in covalent compounds, and properties of ethanoic acid.
- Students must demonstrate knowledge of key concepts through written explanations, diagrams, equations, and interpreting provided data in the form of a graph.
This document is an exam paper for the International General Certificate of Secondary Education (IGCSE) Chemistry exam. It consists of 5 questions testing knowledge of chemistry concepts and calculations. The first question covers topics related to iron production and properties of iron and steel. The second question covers essential minerals and properties of elements like boron. The third question covers alkene hydrocarbons and their reactions. The fourth question covers nitrogen dioxide and oxides of nitrogen. The final question covers properties of elements in Period 6 of the periodic table.
This document provides instructions for a chemistry exam. It tells students to write their identification information on all work submitted. It specifies to write in blue or black pen and may use pencil for diagrams. Do not use staples, paper clips, etc. Do not write in barcodes. Answer all questions and electronic calculators may be used. It provides the periodic table and says marks may be lost for not showing working or using appropriate units. At the end, fasten all work securely together. It provides the number of marks for each question in brackets.
The document consists of exam questions on various chemistry topics like zirconium, nuclear reactors, ionic compounds, extraction of metals like zinc, sulfuric acid, organic
This document is the Periodic Table of the Elements data sheet. It provides information about the elements including:
- The element's atomic number and symbol
- The element's relative atomic mass
- Which group and period the element is in
- Some key properties of each element
- The volume of one mole of any gas at room temperature and pressure
- Notes about the lanthanoid and actinoid series
This document consists of exam questions for International GCSE Chemistry. It includes 11 pages of multiple choice and structured questions testing students' knowledge of topics including the periodic table, polymers, fertilizers, corrosion, and photochemical reactions. Students are instructed to answer all questions in dark blue or black pen without using staples or correction fluid. Their work will be collected and fastened together at the end of the exam.
This document is a textbook on drilling engineering that covers topics such as rotary drilling rig components and systems, geomechanics, drilling hydraulics, drill bits, and drillstring design. It provides detailed explanations of concepts and calculations with examples. The textbook is intended for a master's level course on petroleum engineering and drilling.
This document contains a chemistry question paper with multiple parts testing knowledge of stoichiometry, thermochemical reactions, properties of elements and compounds, and reactions of sulfur compounds. The paper includes questions involving mole calculations, identifying products of reactions when substances are heated, describing physical properties and structures of macromolecular substances, writing balanced equations and describing conditions for industrial reactions.
This document provides an overview of the settings, styles, and content included in the AutoCAD Civil 3D 2013 UK and Ireland Country Kit. It includes layers, reports, drawing settings, object styles for various Civil 3D objects, tool palettes, design criteria, and a pipe and structure catalog. The author introduces the kit and provides guidance on customizing the templates for different organizations.
Pluripotent stem-cell-handbook-from-nature-and-thermoscienceAmira M. Heniedy
This document is a handbook about pluripotent stem cells. It contains sections on reprogramming cells into a pluripotent state, engineering pluripotent stem cells using tools like CRISPR-Cas9 and TALENs, culturing pluripotent stem cells in feeder-dependent and feeder-free systems, differentiating pluripotent stem cells into various cell types, and characterizing pluripotent stem cells and their differentiated progeny. The handbook provides information and protocols for working with pluripotent stem cells from initial reprogramming through differentiation and characterization.
This document consists of a 12-page chemistry exam for the International General Certificate of Secondary Education. The exam contains multiple choice and short answer questions testing knowledge of topics including the isolation of iron, alkene reactions, nitrogen dioxide, properties of Group 1 and 2 metals on the periodic table, and alkene polymerization. Diagrams and equations are included. A periodic table is provided on the final page.
This document provides instructions and questions for a chemistry exam, including answering questions on the periodic table, chemical reactions, compounds, and acids and bases. Students are provided a periodic table and instructed to show all work, write in pen, and securely fasten all pages together at the end of the exam. The exam consists of 12 printed pages and covers topics like cobalt, sulfur dioxide, antimony extraction, alcohol properties, and salt preparations.
This 12-page document appears to be from a chemistry exam. It contains 6 multi-part chemistry questions related to laboratory experiments and analyses. The questions cover topics like identifying common laboratory apparatus, interpreting data from reaction time experiments, balancing redox equations, analyzing mixtures of compounds, and planning an investigation into the composition of beach sand. Diagrams and tables of data are provided to aid in answering the questions.
This document is a chemistry exam paper assessing knowledge of acids, bases and salts. It contains multiple choice and written response questions testing understanding of:
- Preparing soluble salts from insoluble bases and acids
- Properties of strong and weak acids
- Reactions of acids with metals, bases, carbonates and other salts
- Acid-base theories including proton transfer and pH
- Methods of salt preparation and properties of common oxides
This document contains a 6-part stoichiometry exam with multiple choice and written response questions. The exam covers topics such as the law of constant composition, balancing chemical equations, empirical and molecular formulas, limiting reagents, percentage yield calculations, and methods for preparing different types of salts.
This document contains a chemistry exam paper with multiple questions about fuels and hydrocarbons. The questions cover topics such as combustion reactions of hydrocarbons, cracking of alkanes, acid rain formation from fossil fuel combustion, homologous series of hydrocarbons and carboxylic acids, and the formation of fossil fuels. The document tests understanding of fundamental organic chemistry concepts as well as the environmental impacts of burning fossil fuels.
This document provides instructions for a chemistry exam. It consists of 16 printed pages and covers topics like gases, hydrogen compounds, cobalt chloride, seawater compounds, fertilizers, metals and extraction, petroleum, and conductivity. Students are instructed to write their identification details on the paper and answer all questions in dark blue or black pen, using a pencil for diagrams. They should not use staples or correction fluid. The exam is 1 hour and 15 minutes long.
This document provides instructions for a chemistry exam. It consists of 14 printed pages and 2 blank pages. Students are instructed to write their identification information on all work submitted and to use dark blue or black pen, reserving pencil for diagrams. They are to answer all questions and show working where appropriate. A periodic table is provided on page 16. The number of marks for each question is provided in brackets at the end.
This document provides instructions for a chemistry exam, including:
- Write your details on all work submitted.
- Write in dark blue or black pen, use pencil for diagrams.
- Do not use staples, paper clips, etc.
- Answer all questions and show working.
- Electronic calculators and a periodic table are permitted.
- Fasten all work securely at the end.
The document is a chemistry exam paper containing multiple questions on topics related to electricity and chemistry. It includes questions about the extraction of zinc from zinc blende, the purification of zinc by electrolysis, corrosion of steel and its prevention, the extraction of iron in the blast furnace, and catalysts in chemical reactions. The questions require students to write word and ionic equations, explain observations, complete descriptions, and suggest explanations.
The document provides an overview of the Kjeldahl method for determining nitrogen content. It discusses the history of the method developed by Johan Kjeldahl in 1883. For over 130 years it has been an internationally accepted standard for determining nitrogen in various samples. The document outlines the typical procedures for Kjeldahl analysis including sample preparation, digestion, distillation, and titration. It also discusses parameters that affect the analysis and provides references for further information.
This document contains a 5-question stoichiometry exam with multiple parts to each question. The exam covers topics such as the law of constant composition, reduction and oxidation reactions, empirical and molecular formulas, limiting reagents, and balanced chemical equations. Students are asked to perform stoichiometric calculations, identify limiting reagents, write balanced equations, and determine empirical formulas from percentage compositions.
- The document is a chemistry exam paper assessing knowledge of particulate nature of matter including diffusion, Brownian motion, and properties of solids, liquids, and gases.
- It contains 5 multi-part questions testing understanding of acid-base reactions, properties of halogens, uses of selenium and sulfur, bonding in covalent compounds, and properties of ethanoic acid.
- Students must demonstrate knowledge of key concepts through written explanations, diagrams, equations, and interpreting provided data in the form of a graph.
This document is an exam paper for the International General Certificate of Secondary Education (IGCSE) Chemistry exam. It consists of 5 questions testing knowledge of chemistry concepts and calculations. The first question covers topics related to iron production and properties of iron and steel. The second question covers essential minerals and properties of elements like boron. The third question covers alkene hydrocarbons and their reactions. The fourth question covers nitrogen dioxide and oxides of nitrogen. The final question covers properties of elements in Period 6 of the periodic table.
This document provides instructions for a chemistry exam. It tells students to write their identification information on all work submitted. It specifies to write in blue or black pen and may use pencil for diagrams. Do not use staples, paper clips, etc. Do not write in barcodes. Answer all questions and electronic calculators may be used. It provides the periodic table and says marks may be lost for not showing working or using appropriate units. At the end, fasten all work securely together. It provides the number of marks for each question in brackets.
The document consists of exam questions on various chemistry topics like zirconium, nuclear reactors, ionic compounds, extraction of metals like zinc, sulfuric acid, organic
This document is the Periodic Table of the Elements data sheet. It provides information about the elements including:
- The element's atomic number and symbol
- The element's relative atomic mass
- Which group and period the element is in
- Some key properties of each element
- The volume of one mole of any gas at room temperature and pressure
- Notes about the lanthanoid and actinoid series
This document consists of exam questions for International GCSE Chemistry. It includes 11 pages of multiple choice and structured questions testing students' knowledge of topics including the periodic table, polymers, fertilizers, corrosion, and photochemical reactions. Students are instructed to answer all questions in dark blue or black pen without using staples or correction fluid. Their work will be collected and fastened together at the end of the exam.
This document is a textbook on drilling engineering that covers topics such as rotary drilling rig components and systems, geomechanics, drilling hydraulics, drill bits, and drillstring design. It provides detailed explanations of concepts and calculations with examples. The textbook is intended for a master's level course on petroleum engineering and drilling.
This document contains a chemistry question paper with multiple parts testing knowledge of stoichiometry, thermochemical reactions, properties of elements and compounds, and reactions of sulfur compounds. The paper includes questions involving mole calculations, identifying products of reactions when substances are heated, describing physical properties and structures of macromolecular substances, writing balanced equations and describing conditions for industrial reactions.
This document provides an overview of the settings, styles, and content included in the AutoCAD Civil 3D 2013 UK and Ireland Country Kit. It includes layers, reports, drawing settings, object styles for various Civil 3D objects, tool palettes, design criteria, and a pipe and structure catalog. The author introduces the kit and provides guidance on customizing the templates for different organizations.
Pluripotent stem-cell-handbook-from-nature-and-thermoscienceAmira M. Heniedy
This document is a handbook about pluripotent stem cells. It contains sections on reprogramming cells into a pluripotent state, engineering pluripotent stem cells using tools like CRISPR-Cas9 and TALENs, culturing pluripotent stem cells in feeder-dependent and feeder-free systems, differentiating pluripotent stem cells into various cell types, and characterizing pluripotent stem cells and their differentiated progeny. The handbook provides information and protocols for working with pluripotent stem cells from initial reprogramming through differentiation and characterization.
This document consists of a 12-page chemistry exam for the International General Certificate of Secondary Education. The exam contains multiple choice and short answer questions testing knowledge of topics including the isolation of iron, alkene reactions, nitrogen dioxide, properties of Group 1 and 2 metals on the periodic table, and alkene polymerization. Diagrams and equations are included. A periodic table is provided on the final page.
This document provides instructions and questions for a chemistry exam, including answering questions on the periodic table, chemical reactions, compounds, and acids and bases. Students are provided a periodic table and instructed to show all work, write in pen, and securely fasten all pages together at the end of the exam. The exam consists of 12 printed pages and covers topics like cobalt, sulfur dioxide, antimony extraction, alcohol properties, and salt preparations.
This 12-page document appears to be from a chemistry exam. It contains 6 multi-part chemistry questions related to laboratory experiments and analyses. The questions cover topics like identifying common laboratory apparatus, interpreting data from reaction time experiments, balancing redox equations, analyzing mixtures of compounds, and planning an investigation into the composition of beach sand. Diagrams and tables of data are provided to aid in answering the questions.
This document is a chemistry exam paper assessing knowledge of acids, bases and salts. It contains multiple choice and written response questions testing understanding of:
- Preparing soluble salts from insoluble bases and acids
- Properties of strong and weak acids
- Reactions of acids with metals, bases, carbonates and other salts
- Acid-base theories including proton transfer and pH
- Methods of salt preparation and properties of common oxides
This document contains a 6-part stoichiometry exam with multiple choice and written response questions. The exam covers topics such as the law of constant composition, balancing chemical equations, empirical and molecular formulas, limiting reagents, percentage yield calculations, and methods for preparing different types of salts.
This document contains a chemistry exam paper with multiple questions about fuels and hydrocarbons. The questions cover topics such as combustion reactions of hydrocarbons, cracking of alkanes, acid rain formation from fossil fuel combustion, homologous series of hydrocarbons and carboxylic acids, and the formation of fossil fuels. The document tests understanding of fundamental organic chemistry concepts as well as the environmental impacts of burning fossil fuels.
This document provides instructions for a chemistry exam. It consists of 16 printed pages and covers topics like gases, hydrogen compounds, cobalt chloride, seawater compounds, fertilizers, metals and extraction, petroleum, and conductivity. Students are instructed to write their identification details on the paper and answer all questions in dark blue or black pen, using a pencil for diagrams. They should not use staples or correction fluid. The exam is 1 hour and 15 minutes long.
This document provides instructions for a chemistry exam. It consists of 16 printed pages and covers the following topics:
1. The exam instructions state to write candidate details on all work submitted and to answer all questions. Calculators and a periodic table are permitted.
2. The exam contains questions on subatomic particles, isotopes, chemical equations, and properties of Period 3 elements and their compounds.
3. Further questions address rates of reaction, electroplating, the Contact process for sulfuric acid production, petroleum processing, and ester formation.
This document provides instructions for a chemistry exam. It consists of 16 printed pages and covers the following topics:
1. The exam instructions state to write candidate details on all work submitted and to answer all questions. Calculators and a periodic table are permitted.
2. The exam contains questions on subatomic particles, isotopes, chemical equations, and properties of Period 3 elements and their compounds.
3. Further questions address rates of reaction, electroplating, the Contact process for sulfuric acid production, petroleum processing, and ester formation.
AQA AS Chemistry Atomic Structure QuestionsGodschild24
This document contains sample chemistry problems and questions regarding various topics:
1) Using the ideal gas equation to calculate the volume of ethanol vapor under certain pressure and temperature conditions.
2) Balancing a chemical equation and calculating moles of a substance produced.
3) Calculating the maximum mass of a product formed from a given mass of a reactant over two reaction stages.
4) Stating the relative charge and mass of an electron, identifying properties of chromium isotopes, and explaining mass spectrometry.
5) Calculating an empirical formula from elemental composition percentages.
This document provides instructions for a chemistry exam. It outlines that candidates have 1 hour and 15 minutes to complete the exam. They should write their identifying information in the spaces provided. The exam consists of 12 printed pages and candidates should answer all questions in the spaces on the paper. No additional materials are allowed.
This document is a 17-page chemistry exam consisting of multiple choice and short answer questions covering topics like purification methods, petroleum fractions, limestone thermal decomposition, bromine extraction, and aluminum electrolysis. It includes a 3-page periodic table and some blank pages. Students are to answer all questions directly on the exam paper using a dark pen or pencil and without other materials.
This document is a 17-page chemistry exam consisting of multiple choice and short answer questions covering topics like purification methods, petroleum fractions, limestone thermal decomposition, bromine extraction, fuel combustion, aluminum electrolysis, and the periodic table. It includes 3 blank pages at the end.
1. The document discusses types of nuclear radiation (alpha, beta, gamma) and their properties. It provides examples of how radioactive sources can be used in experiments and demonstrations.
2. Safety precautions are important when using radioactive sources. Radiation can penetrate materials differently depending on its type, and sources decay over time.
3. Radiation detection equipment such as Geiger counters are used to measure radiation levels and identify isotopes. Properties like half-life can be calculated from decay data.
This document is a thesis submitted by Aaron Outhwaite to Dalhousie University in partial fulfillment of the requirements for a Master of Applied Sciences degree. The thesis characterizes the design and modeling of a building-integrated microalgae photobioreactor (BIMP) system. It discusses BIMP design fundamentals, including growth limiting factors like light, temperature, nutrients, and carbon. It also covers BIMP modeling fundamentals, growth rate expressions, and dynamics of light, temperature, nutrients, and carbon dioxide in the system. Several chapters then present mathematical models of light and temperature dynamics in a BIMP and results of the models.
1. Alcohols form a homologous series with characteristics including similar functional groups, incremental formula differences of CH2, and a linear structure. Two alcohols shown are isomers because they have the same molecular formula but different structural formulas. Butanol can be oxidized by copper(II) oxide to form an acid in the carboxylic acid series.
2. Ethanol can be produced by yeast fermentation of glucose, which is an exothermic reaction that produces carbon dioxide. The reaction rate initially increases as yeast converts glucose but eventually decreases as reactants are depleted.
3. Esters contain the ester linkage and can be formed from alcohols and carboxylic acids
1-Module 1-Fundamentals of Chemistry.pdfEliudkamande
This document provides an overview of chemistry fundamentals including:
- The structure of atoms and how they combine to form molecules and chemical elements.
- An explanation of the periodic table and how it organizes the chemical elements.
- Descriptions of different types of chemical bonds like ionic bonds and covalent bonds.
- Concepts such as moles, molecules, chemical equations, and acids/bases.
- Appendices provide additional details on separation theory, converters, and diffusion processes relevant to chemistry applications.
The document serves as a handbook outlining basic but essential chemistry concepts for understanding matter at the atomic and molecular levels.
This file contains almost all needs of SSC Part I (Grade IX) Students. Specially from Karachi Board.
Very Useful If you like comments and ask for other subjects.
This document contains four chemistry worksheets with questions about the periodic table and properties of elements in groups 1 and 0. The questions cover topics such as electron configurations, ions, reactivity, density, distinguishing between gases, writing word and symbol equations for reactions, dot-and-cross diagrams, and the crystal structure of sodium chloride. Students are asked to identify elements, explain choices, describe trends in properties down a group, name ions, and balance equations.
17 water qp_-_igcse_cie_chemistry_-_extended_theory_paperyasminexxy1
This document contains 6 chemistry exam questions about water and air. The questions cover topics like chemical tests for water, water treatment processes, the water cycle, ozone in the atmosphere, air pollution, and reactions of different oxides with acids and bases. Students are required to describe, explain, state, name and complete equations. The test is designed to assess students' understanding of key concepts regarding water and air composition, properties and industrial/domestic applications.
Organic reactions by experiments with answers 1MRSMPC
The document discusses four organic reactions:
1) Fermentation of glucose into ethanol and carbon dioxide by yeast. Yeast and limewater are used, leaving the mixture for 2-3 days at 25-30°C. Distillation is used to produce pure ethanol.
2) Dehydration of ethanol into ethene using porcelain chips as a catalyst. Heating produces ethene gas, which is tested for.
3) Oxidation of ethanol into ethanoic acid using acidified potassium dichromate and reflux. Distillation is used to obtain ethanoic acid.
4) Preparation of an ester from ethanol and sulfuric acid using reflux and then distillation
This document contains an examination for the International General Certificate of Secondary Education in Physics. It consists of 10 multiple choice questions testing knowledge of various physics concepts. The exam is 1 hour and 15 minutes long and candidates are to answer all questions directly on the question paper provided. The paper covers topics such as mechanics, energy, waves, optics, electricity and magnetism, and radioactivity.
This document consists of a 12-page chemistry exam for the International General Certificate of Secondary Education. The exam contains multiple choice and short answer questions testing knowledge of concepts including the isolation of iron, production of steel, properties and reactions of alkenes and alkynes, nitrogen dioxide, group 1 and 2 metals on the periodic table, and more. Diagrams, equations, and explanations are required to fully answer the questions.
This document contains information about four experiments conducted to investigate the rate of reaction between solutions J and K and sulfuric acid at different temperatures. The key details are:
- Experiment 1 was conducted at room temperature and used as the baseline. Experiments 2-4 heated the mixture to increasing temperatures before adding solution K.
- The time taken for the mixtures to turn pale yellow was recorded.
- A line graph of time vs average temperature showed the rate of reaction increased with increasing temperature.
- Extrapolating the graph indicated a temperature of 60°C would yield a reaction time of around 15 seconds.
The document is a chemistry exam paper testing students' ability to identify ions and gases through laboratory tests. It describes tests carried out on various solid and liquid samples and asks students to identify the substances, describe observations, and draw conclusions. The paper tests knowledge of common chemical tests including flame tests, reactions of salts with acids and bases, and precipitation reactions to identify anion groups present. Students must analyze the provided data and apply their understanding of chemical reactions and properties to deduce the identities and nature of the unknown samples.
This document is a chemistry exam question paper that tests students' knowledge of types of oxides. It contains 16 multiple choice questions about classifying elements based on whether their oxides are acidic or basic, identifying properties of acidic and basic oxides, and predicting reactions of oxides with acids and bases. The questions cover topics like the positions of elements in the periodic table that relate to the acidity or basicity of their oxides, and common reactions of oxides like neutralization. The document also provides the grade boundaries for scoring the exam.
This document provides a chemistry exam on acids, bases and salts from the Cambridge International Examinations board. It contains 21 multiple choice questions testing understanding of concepts such as the preparation of salts from reactions between acids and bases or metal oxides. Students are asked about the purpose of steps in salt preparation procedures, the products and reagents of different salt forming reactions, and the equipment used. The document also provides the grade boundaries for the exam.
1. The document is a biology exam paper covering the topic of coordination and response. It contains 50 multiple choice questions testing students' understanding of topics like reflex arcs, hormones, homeostasis, and plant tropisms.
2. The questions cover a range of concepts in human physiology and plant biology including the eye, skin, circulatory and nervous systems, temperature regulation, tropic responses, and hormonal coordination.
3. Additional resources for students can be found at the website savemyexams.co.uk which provides GCSE and A level materials across multiple subjects.
1. The document is an exam paper on acids and bases for IGCSE Chemistry. It contains 31 multiple choice questions testing knowledge of acid-base reactions and properties.
2. The questions cover topics like the characteristic properties of acids and bases, pH scales, acid-base indicators, and reactions like neutralization and those that produce carbon dioxide or ammonia gas.
3. Sample questions identify acids and bases, interpret acid-base titration curves, and write balanced equations for acid-base reactions.
This document contains a 25 question biology exam on coordination and response. It tests students' understanding of topics like reflexes, homeostasis, the nervous and endocrine systems, plant tropisms, and human physiology. Diagrams of biological structures like the eye, neurons, and plant shoots accompany several questions. The exam is scored out of 25 marks and is designed to take 30 minutes to complete.
This document contains an excerpt from a biology exam on coordination and response. It includes several multiple choice and short answer questions testing understanding of topics like the nervous system, reflexes, plant tropisms, homeostasis, and glucose regulation. Diagrams are provided of biological systems like the mammalian nervous system, a reflex arc, seedling growth responses, human skin response to cold, the liver and associated blood vessels, and control of blood glucose concentration. Students are asked to label parts, describe processes, explain concepts, and perform basic calculations.
This document contains a biology exam paper on coordination and response. It includes multiple choice and short answer questions testing understanding of topics like sensitivity, voluntary vs involuntary actions, reflex arcs, hormones, and how the nervous and endocrine systems coordinate organs and responses in the body. The exam is for IGCSE level and contains 58 minutes worth of content divided into 4 sections with a total possible score of 48 marks.
The students use a starting pistol, stopwatch, and measuring tape to measure the speed of sound. One student fires the starting pistol while the other times how long it takes the sound to travel a known distance measured with the tape. They calculate the speed of sound by dividing the distance traveled by the time taken.
The document contains multiple choice questions about sound waves and ultrasound. It covers topics like the range of human hearing, properties that determine the loudness and pitch of sounds, how echoes are produced, and using the speed of sound to calculate distances.
Ultrasound cannot be heard by humans because its frequency is too high. The range of audible sound frequencies for humans is typically 20 Hz to 20 kHz. A louder or higher pitched sound will have a greater amplitude and higher frequency respectively. Sound is a longitudinal wave that requires a medium, such as air or water, to travel through and be heard.
This document provides the mark scheme for an International General Certificate of Secondary Education (IGCSE) chemistry exam from May/June 2010. It shows teachers how to award marks to exam answers and serves as guidance, though alternative answers may be acceptable. The mark scheme details the requirements for each question on the exam paper and provides sample answers with marks allocated. CIE will not discuss or justify the mark scheme further.
This document is the mark scheme for the May/June 2010 International General Certificate of Secondary Education (IGCSE) Chemistry exam. It provides guidance to teachers on how to award marks for exam questions. The mark scheme indicates the requirements to receive marks and shows the basis on which examiners were instructed to award marks. It does not discuss the examiners' meetings before marking began. CIE will not enter into discussions about the mark schemes. CIE is publishing mark schemes for most IGCSE, GCE Advanced Level, and Advanced Subsidiary Level exams from May/June 2010.
This document consists of 16 pages related to a chemistry exam, including:
1. 15 multiple choice questions on chemistry topics
2. 1 blank page
3. Instructions for exam takers on how to fill out the multiple choice answer sheet.
This document provides instructions for a chemistry exam. It tells students to write their identification information at the top, use dark ink or pencil for diagrams, and do not use staples or correction fluid. It lists the number of marks for each question. The exam contains 15 printed pages and 1 blank page. A periodic table is provided on page 16. Students should answer all questions and fasten their work together at the end.
This document provides the mark scheme for the May/June 2011 International General Certificate of Secondary Education (IGCSE) Chemistry exam. It lists the correct answers for the 40 multiple choice questions on the exam paper and is intended to guide teachers in marking the exam. The document also notes that Cambridge will not enter into discussions about the mark schemes and that they are publishing mark schemes for most IGCSE and other exam papers from May/June 2011.
This document contains a mark scheme for an International General Certificate of Secondary Education (IGCSE) chemistry exam. It provides guidance for teachers on how to award marks for students' answers. The mark scheme shows the requirements for earning marks, but does not discuss alternative answers that may also be acceptable. It should be read along with the exam question papers and exam report. Cambridge will not enter into discussions about the mark scheme. The mark scheme then provides details on how marks were allocated to sample questions and student responses for various concepts in chemistry.
This document consists of 16 printed pages containing a chemistry exam with multiple choice questions. The exam tests knowledge of chemistry concepts including the periodic table, chemical reactions, and properties of substances. It provides answer choices for students to select during the exam.
This document provides instructions for a chemistry exam. It tells students to write their identification on all work, use blue or black pen with pencil for diagrams, and not to use staples, paper clips, etc. It lists the number of marks for each question. It provides a periodic table and instructions to fasten all work together at the end. It consists of 11 printed pages and 1 blank page for working.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
1. Stoichiometry
Question Paper 1
Level IGCSE
ExamBoard CIE
Topic Stoichiometry
Sub-Topic
Paper (Extended) Theory
Booklet Question Paper 1
TimeAllowed: 83 minutes
Score: / 69
Percentage: /100
Subject Chemistry
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
2. 1 Dilute hydrochloric acid reacts with sodium carbonate solution.
2HCl(aq) + Na2CO3(aq) → 2NaCl(aq) + H2O(l) + CO2(g)
(a) Explain why effervescence is seen during the reaction.
....................................................................................................................................................
.............................................................................................................................................. [1]
(b) Dilute hydrochloric acid was titrated with sodium carbonate solution.
• 10.0cm3
of 0.100mol/dm3
hydrochloric acid were placed in a conical flask.
• A few drops of methyl orange indicator were added to the dilute hydrochloric acid.
• The mixture was titrated with sodium carbonate solution.
• 16.2cm3
of sodium carbonate solution were required to react completely with the acid.
(i) What colour would the methyl orange indicator be in the hydrochloric acid?
....................................................................................................................................... [1]
(ii) Calculate how many moles of hydrochloric acid were used.
............................ mol [1]
(iii) Use your answer to (b)(ii) and the equation for the reaction to calculate the number of
moles of sodium carbonate that reacted.
............................ mol [1]
(iv) Use your answer to (b)(iii) to calculate the concentration of the sodium carbonate solution
in mol/dm3
.
............................ mol/dm3
[2]
(c) In another experiment, 0.020mol of sodium carbonate were reacted with excess hydrochloric
acid.
Calculate the maximum volume (at r.t.p.) of carbon dioxide gas that could be made in this
reaction.
............................ dm3
[3]
[Total: 9]
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
3. 2 (a) Alkanes and alkenes are examples of hydrocarbons.
(i) What is meant by the term hydrocarbon?
.............................................................................................................................................
....................................................................................................................................... [1]
(ii) Give the general formula of straight-chain
alkanes, ..............................................................................................................................
alkenes. ..............................................................................................................................
[2]
(b) A compound X contains carbon, hydrogen and oxygen only.
X contains 54.54% of carbon by mass, 9.09% of hydrogen by mass and 36.37% of oxygen by
mass.
(i) Calculate the empirical formula of compound X.
[2]
(ii) Compound X has a relative molecular mass of 88.
Deduce the molecular formula of compound X.
[2]
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
4. (c) An ester has the molecular formula C3H6O2.
Name and give the structural formulae of two esters with the molecular formula C3H6O2.
name of ester
structural formula
[4]
(d) Name the ester produced from the reaction of propanoic acid and methanol.
.............................................................................................................................................. [1]
(e) A polyester is represented by the structure shown.
C
O
C
O
O O
(i) What type of polymerisation is used for the production of polyesters?
....................................................................................................................................... [1]
(ii) Which simple molecule is removed when the polyester is formed?
....................................................................................................................................... [1]
(iii) Complete the diagrams below to show the structures of the monomers used to produce
the polyester. Show all atoms and bonds.
C C O O
[2]
[Total: 16]
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
5. 3 (a) A compound, X, contains 55.85% carbon, 6.97% hydrogen and 37.18% oxygen.
(i) How does this prove that compound X contains only carbon, hydrogen and oxygen?
....................................................................................................................................... [1]
(ii) Use the above percentages to calculate the empirical formula of compound X.
....................................................................................................................................... [2]
(iii) The Mr of X is 86.
What is its molecular formula?
....................................................................................................................................... [2]
(b) (i) Bromine water changes from brown to colourless when added to X.
What does this tell you about the structure of X?
....................................................................................................................................... [1]
(ii) Magnesium powder reacts with an aqueous solution of X. Hydrogen is evolved.
What does this tell you about the structure of X?
....................................................................................................................................... [1]
(iii) X contains two different functional groups.
Draw a structural formula of X.
[1]
[Total: 8]
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
6. 4 Two salts can be made from potassium hydroxide and sulfuric acid. They are potassium sulfate,
K2SO4, and the acid salt potassium hydrogen sulfate, KHSO4. They are both made by titration.
conical flask
burette filled with
sulfuric acid
25.0cm3 of potassium hydroxide solution
(a) 25.0cm3 of potassium hydroxide, concentration 2.53mol/dm3, was neutralised by 28.2cm3 of
dilute sulfuric acid.
2KOH(aq) + H2SO4(aq) o K2SO4(aq) + 2H2O(l) Calculate
the concentration of the sulfuric acid.
number of moles of KOH used = ............................
number of moles of H2SO4 needed to neutralise the KOH = ............................
concentration of dilute sulfuric acid = ............................ mol/dm3
[3]
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
7. (b) ,Q WKH FRQLFDO ÀDVN WKHUH LV D QHXWUDO VROXWLRQ RI SRWDVVLXP VXOIDWH ZKLFK VWLOO FRQWDLQV WKH
indicator used in the titration.
(i) Describe how you could obtain a solution of potassium sulfate without the indicator.
.............................................................................................................................................
....................................................................................................................................... [2]
(ii) Potassium hydrogen sulfate can be made by the following reaction.
KOH(aq) + H2SO4(aq) o KHSO4(aq) + H2O(l)
Suggest how you could make a solution of potassium hydrogen sulfate without using an indicator.
.............................................................................................................................................
.............................................................................................................................................
....................................................................................................................................... [2]
(c) Describe a test which would distinguish between aqueous solutions of potassium
sulfate and sulfuric acid
test .................................................................................................................................
result ..............................................................................................................................
[2]
[Total: 9]
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
8. 5 The Atacama desert in Chile has deposits of the salt sodium nitrate. Very large amounts of this
salt were exported to Europe for use as a fertiliser. After the introduction of the Haber process in
1913, this trade rapidly diminished.
(a)a) Explain why the introduction of the Haber process reduced the demand for
sodium nitrate.
.............................................................................................................................................
....................................................................................................................................... [2]
(ii) Suggest why surface deposits of sodium nitrate only occur in areas with very low rainfall
such as desert areas.
....................................................................................................................................... [1]
(iii) The desert has smaller surface deposits of potassium nitrate.
Suggest why potassium nitrate is a better fertiliser than the sodium salt.
....................................................................................................................................... [1]
(b) All nitrates decompose when heated. The extent to which a nitrate decomposes is
determined by the metal in the salt.
(i) Sodium nitrate decomposes to form sodium nitrite, NaNO2.
Write the equation for decomposition of sodium nitrate.
....................................................................................................................................... [2]
(ii) Sodium nitrite is a reducing agent.
What would be observed if an excess of sodium nitrite solution was added to a solution
of acidified potassium manganate(VII)?
....................................................................................................................................... [2]
(iii) Copper(II) nitrate decomposes to form copper(II) oxide, nitrogen dioxide and oxygen.
What is the relationship between the extent of decomposition and the reactivity of the
metal in the nitrate?
.............................................................................................................................................
....................................................................................................................................... [1]
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
9. (c) The equation for the decomposition of copper(II) nitrate is given below.
2Cu(NO3)2 → 2CuO + 4NO2 + O2
(i) Predict what you would observe when copper(II) nitrate is heated.
.............................................................................................................................................
.............................................................................................................................................
....................................................................................................................................... [3]
(ii) Copper(II) nitrate forms a series of hydrates with the formula Cu(NO3)2.xH2O.
All these hydrates decompose to form copper(II) oxide.
1 mole of Cu(NO3)2.xH2O forms 1 mole of CuO.
What is meant by 1 mole of a substance?
.............................................................................................................................................
....................................................................................................................................... [2]
(iii) 7.26g of a hydrate, Cu(NO3)2.xH2O, formed 2.4g copper(II) oxide.
number of moles of CuO formed = ......................
number of moles of Cu(NO3)2.xH2O in 7.26g = ......................
mass of 1 mole of Cu(NO3)2.xH2O = ......................g
mass of 1 mole of Cu(NO3)2 is 188g
the value of x in this hydrate = ......................
[4]
[Total: 18]
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
10. 6 Use your copy of the Periodic Table to help you answer these questions.
(a) Predict the formula of each of the following compounds.
(i) aluminiumfl
uoride ........................................................................................................ [1]
(ii) arsenic
oxide ................................................................................................................
[1]
(iii) silicon
bromide ..............................................................................................................
[1]
(b) Deduce the formula of each of the following ions.
(i) phosphide .............................................................................................................
........ [1]
(ii) barium ...................................................................................................................
........ [1]
(iii) francium ................................................................................................................
........ [1]
(c) Draw a diagram showing the arrangement of the valency electrons in one
molecule of the covalent compound carbon dioxide.
Use x to represent an electron from a carbon atom. Use o to
represent an electron from an oxygen atom.
[3]
[Total: 9]
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/