ScienceShare.co.uk Shared Resource
•Download as DOC, PDF•
0 likes•41 views
This document outlines the different levels of understanding for acids and alkalis, ranging from level 3 which involves knowing the names of some acids and their tastes, to level 6 which involves explaining neutralization reactions and relating pH values to corrosiveness. The student's target level is not specified. Areas to work on from the unit are listed as blank lines to be filled in.
Report
Share
Report
Share
Recommended
Power point presentation
This document discusses acids and alkalis, including their properties and reactions. Acids react with metals and carbonates, producing salts and hydrogen or water and carbon dioxide. Common acids include citric acid in lemons and ethanoic acid in vinegar. Alkalis are found in cleaning products and react with grease. Indicators change color in acids and alkalis, helping identify them. Litmus is red in acids and blue in alkalis. The pH scale measures acidity and alkalinity from 1-14, with 7 being neutral. Neutralization can relieve indigestion by countering excess stomach acid with baking soda.
Reactions of acids
The document discusses acid rain, including its causes and effects. It explains that acid rain is formed when sulfur dioxide and nitrogen oxides from fossil fuel combustion dissolve in rainwater to form strong acids like sulfuric acid and nitric acid. This lowers the pH of the rainwater. Acid rain damages buildings, aquatic life in rivers and lakes, and soil quality by increasing acidity levels. Governments are working to reduce emissions and install pollution controls to lessen acid rain's environmental impacts.
Strength Of Acid And Alkali
Strong acids and bases ionize completely in water, producing high concentrations of hydrogen or hydroxide ions. Weak acids and bases only partially ionize in water, resulting in lower concentrations of ions. Specifically, hydrochloric acid and sodium hydroxide fully dissociate whereas ethanoic acid and ammonia only partially dissociate, making the latter acids and bases weaker. Strong acids and bases have higher pH values and degrees of ionization compared to their weaker counterparts.
Acid and alkali
Acids have sour tastes and are corrosive. Common acids include citric acid in lemon juice and ethanoic acid in vinegar. Strong acids like hydrochloric, sulfuric, and nitric acids are dangerous because they can absorb water and cause burns or react violently with skin. Alkalis are also corrosive and slippery. When acids and alkalis neutralize each other in a chemical reaction, they form salts and water. Indicators change color in acids and alkalis and are used to test whether a solution is acidic or basic. Litmus turns red in acids and blue in bases. Universal indicator shows the strength of acidity or alkalinity through different colors.
BASIC FACTS ABOUT ACIDS AND ALKALIS
Webscience is an affiliate project of Science Tutors. Visit: www.slideshare.net/sciencetutors for more resources.
Thanks
Ivan
Acids And Bases
This document provides information about acids and bases, including their properties and reactions. It defines acids as substances that produce hydrogen ions in aqueous solution, and bases as metal oxides or hydroxides. Strong acids are fully ionized in water, while weak acids are only partially ionized. The strength of an acid does not relate to its concentration. Common uses of acids include battery electrolytes, rust removal, and food preservation.
Acids and alkalis
This document discusses acids and alkalis. It explains that acids have a pH below 7 and turn litmus paper red, while alkalis have a pH above 7 and turn litmus paper blue. When an acid and alkali are mixed, they undergo a neutralization reaction where a salt and water are produced, and the pH becomes closer to 7. Common examples of acids and alkalis are also provided.
ScienceShare.co.uk Shared Resource
This document outlines different levels of understanding for a science module on solutions. Level 3 involves knowing how to retrieve dissolved and undissolved solids from solutions and factors affecting dissolution rates. Level 4 names soluble and insoluble solids, and describes obtaining pure water from seawater and separating ink colors. Level 5 involves classifying solubility, defining saturated solutions and solute/solvent, and describing separation techniques. Level 6 applies particle models to changes of state and chromatography. The student's target areas for improvement within this unit are listed.
Recommended
Power point presentation
This document discusses acids and alkalis, including their properties and reactions. Acids react with metals and carbonates, producing salts and hydrogen or water and carbon dioxide. Common acids include citric acid in lemons and ethanoic acid in vinegar. Alkalis are found in cleaning products and react with grease. Indicators change color in acids and alkalis, helping identify them. Litmus is red in acids and blue in alkalis. The pH scale measures acidity and alkalinity from 1-14, with 7 being neutral. Neutralization can relieve indigestion by countering excess stomach acid with baking soda.
Reactions of acids
The document discusses acid rain, including its causes and effects. It explains that acid rain is formed when sulfur dioxide and nitrogen oxides from fossil fuel combustion dissolve in rainwater to form strong acids like sulfuric acid and nitric acid. This lowers the pH of the rainwater. Acid rain damages buildings, aquatic life in rivers and lakes, and soil quality by increasing acidity levels. Governments are working to reduce emissions and install pollution controls to lessen acid rain's environmental impacts.
Strength Of Acid And Alkali
Strong acids and bases ionize completely in water, producing high concentrations of hydrogen or hydroxide ions. Weak acids and bases only partially ionize in water, resulting in lower concentrations of ions. Specifically, hydrochloric acid and sodium hydroxide fully dissociate whereas ethanoic acid and ammonia only partially dissociate, making the latter acids and bases weaker. Strong acids and bases have higher pH values and degrees of ionization compared to their weaker counterparts.
Acid and alkali
Acids have sour tastes and are corrosive. Common acids include citric acid in lemon juice and ethanoic acid in vinegar. Strong acids like hydrochloric, sulfuric, and nitric acids are dangerous because they can absorb water and cause burns or react violently with skin. Alkalis are also corrosive and slippery. When acids and alkalis neutralize each other in a chemical reaction, they form salts and water. Indicators change color in acids and alkalis and are used to test whether a solution is acidic or basic. Litmus turns red in acids and blue in bases. Universal indicator shows the strength of acidity or alkalinity through different colors.
BASIC FACTS ABOUT ACIDS AND ALKALIS
Webscience is an affiliate project of Science Tutors. Visit: www.slideshare.net/sciencetutors for more resources.
Thanks
Ivan
Acids And Bases
This document provides information about acids and bases, including their properties and reactions. It defines acids as substances that produce hydrogen ions in aqueous solution, and bases as metal oxides or hydroxides. Strong acids are fully ionized in water, while weak acids are only partially ionized. The strength of an acid does not relate to its concentration. Common uses of acids include battery electrolytes, rust removal, and food preservation.
Acids and alkalis
This document discusses acids and alkalis. It explains that acids have a pH below 7 and turn litmus paper red, while alkalis have a pH above 7 and turn litmus paper blue. When an acid and alkali are mixed, they undergo a neutralization reaction where a salt and water are produced, and the pH becomes closer to 7. Common examples of acids and alkalis are also provided.
ScienceShare.co.uk Shared Resource
This document outlines different levels of understanding for a science module on solutions. Level 3 involves knowing how to retrieve dissolved and undissolved solids from solutions and factors affecting dissolution rates. Level 4 names soluble and insoluble solids, and describes obtaining pure water from seawater and separating ink colors. Level 5 involves classifying solubility, defining saturated solutions and solute/solvent, and describing separation techniques. Level 6 applies particle models to changes of state and chromatography. The student's target areas for improvement within this unit are listed.
ScienceShare.co.uk Shared Resource
This document outlines a lesson on forces. It aims to teach students to:
1) Identify different types of forces and how they affect objects.
2) Explain how forces can affect an object's motion.
3) Compare the sizes of opposing forces and how unbalanced forces affect motion.
The lesson investigates friction by having students measure the force needed to drag a shoe on different surfaces. It also explains how balanced and unbalanced forces impact whether an object is stationary, accelerates, or decelerates.
ScienceShare.co.uk Shared Resource
This document contains information about an assignment for a BTEC Level 2 chemistry unit. It includes:
- The learner and assessor names
- Details of the three tasks and the assessment criteria they address
- A scenario providing context for the assignment
- Sources of information for learners to complete the tasks
- Templates for submitting work, assessor feedback, and internal verification.
ScienceShare.co.uk Shared Resource
This document provides information for an assignment on the periodic table and electronic structure for a Level 2 BTEC First Certificate in Applied Science. The assignment includes 5 tasks to provide evidence for 5 assessment criteria. Task 1 involves describing atomic structures of elements 1-20. Task 2 is an investigation of chemical properties of groups 1 and 7. Task 3 describes trends in atomic structure of these groups and draws diagrams. Task 4 explains why these elements are used as compounds. Task 5 explains trends in chemical behavior in relation to electronic structure. The assignment aims to show how reactivity relates to electronic configuration.
ScienceShare.co.uk Shared Resource
This document provides information for an assignment on the periodic table and electronic structure for a Level 2 BTEC First Certificate in Applied Science. The assignment includes 5 tasks to provide evidence for 5 assessment criteria. Task 1 involves describing atomic structures of elements 1-20. Task 2 is an investigation of the chemical properties of groups 1 and 7. Task 3 describes trends in atomic structure and draws diagrams of elements. Task 4 explains why groups 1 and 7 are used as compounds. Task 5 explains trends in chemical behavior in relation to electronic structure. The assignment aims to help students appreciate how reactivity relates to electronic configuration.
ScienceShare.co.uk Shared Resource
This document contains information for an assignment on controlling industrial reactions for a Level 2 BTEC First Certificate in Applied Science. The assignment includes 3 tasks to provide evidence for criteria on investigating how reaction rates are affected, explaining how factors affect industrial reaction rates, and analyzing how factors affect yields. The document provides learner and assessor details, assignment objectives and scenario, task descriptions aligned to criteria, sources for research, sign-off sections, and templates for recording observations and witness statements.
ScienceShare.co.uk Shared Resource
This document outlines an assignment on chemistry and the Earth for a grade. It lists 14 tasks for students to complete involving classifying chemicals as elements, mixtures, or compounds; analyzing physical properties of chemicals; drawing atomic structures of elements; describing chemical reactions of groups 1 and 7; illustrating molecules in elements, compounds, and mixtures; explaining uses of chemicals like brick, copper wire, and glass; and proving characteristics of mixtures and chemical changes. Students are asked to draw atomic structures, define isotopes, describe reactivity trends in the periodic table, and explain why compounds are more commonly used than pure elements.
ScienceShare.co.uk Shared Resource
The document describes a table showing the growth of a baby's length in millimeters at various weeks of pregnancy. It asks the reader to create a line graph displaying this data with weeks of pregnancy on the x-axis and length on the y-axis. It also asks when during pregnancy the baby is growing the fastest.
ScienceShare.co.uk Shared Resource
The document describes the development of a baby in the womb. It shows diagrams of a baby inside the mother's uterus and placenta, connected by the umbilical cord. The placenta and umbilical cord should be colored orange, while the uterus wall should be colored brown. The placenta allows nutrients and oxygen to move from the mother's blood to the baby's blood, while wastes and carbon dioxide move in the opposite direction, without the two blood supplies mixing. However, some harmful substances like alcohol, chemicals from cigarettes, and viruses can pass through the placenta and affect the developing fetus.
ScienceShare.co.uk Shared Resource
The document describes the development of a baby in the womb. It shows diagrams of a baby inside the mother's uterus and placenta, connected by the umbilical cord. The placenta and umbilical cord should be colored orange, while the uterus wall should be colored brown. The passage explains that nutrients and oxygen move from the mother's blood to the fetus's blood in the placenta, while wastes and carbon dioxide move in the opposite direction. However, some harmful substances like alcohol, chemicals from cigarettes, and viruses can cross the placenta and affect fetal development.
ScienceShare.co.uk Shared Resource
The human body is made up of 11 major organ systems that work together to keep us alive and functioning. These organ systems include the circulatory, respiratory, digestive, nervous, excretory, reproductive, immune, endocrine, integumentary, skeletal, and muscular systems. Each system is comprised of various organs that work cooperatively to perform important tasks necessary for survival.
ScienceShare.co.uk Shared Resource
Nerve cells have many connecting side branches and transmit information as electrical impulses. Red blood cells have no nucleus and a large surface area to carry oxygen. White blood cells have a large nucleus and fight infection.
ScienceShare.co.uk Shared Resource
This document contains two charts showing the ages when physical changes typically start for girls and boys growing up. The charts list ages 8 through 17 and suggest that puberty and other developments may begin around ages 10-12 for girls and ages 11-13 for boys as they mature into young adults.
ScienceShare.co.uk Shared Resource
This document contains 20 statements about puberty and reproduction and asks the reader to identify each one as true, partly true, or false. It covers changes during puberty like hair growth and periods, sex cells, hormones, wet dreams, feelings, and menstrual cycles in females in preparation for potential pregnancy. Maintaining cleanliness during puberty is also mentioned.
ScienceShare.co.uk Shared Resource
The male reproductive system consists of internal and external organs that work together for reproduction. The external organs are the penis and scrotum, which contains the testes where sperm are produced. The internal organs include the vas deferens, seminal vesicles, prostate gland, and urethra, which all play a role in ejaculation and the delivery of sperm.
ScienceShare.co.uk Shared Resource
This document discusses two main types of bonding: ionic bonding and covalent bonding. Ionic bonding involves the transfer of electrons from metal atoms to non-metal atoms, resulting in positively charged metal ions and negatively charged non-metal ions that are attracted to each other. Covalent bonding involves the sharing of electron pairs between non-metal atoms to form stable molecular structures. Examples of ionic compounds include sodium chloride and magnesium chloride, while examples of covalent compounds discussed are hydrogen gas, ammonia, and water.
ScienceShare.co.uk Shared Resource
The document provides an example key that can be used to identify plants based on their reproductive structures and physical characteristics. The key shows that plants can be identified as flowering plants, conifers, mosses or ferns depending on whether they reproduce from seeds or spores and the size of their leaves. It also prompts the reader to use the key to identify 4 example plants and create a similar key that could be used to identify animals based on attributes like color, habitat and number of legs.
ScienceShare.co.uk Shared Resource
The document provides a key for scientists to identify different types of plastics based on their properties when heated or burned. The key involves a series of yes/no questions to determine if the plastic melts with heat, burns, drips when burned, smells fishy or cracks when heated, and whether it continues burning after the flame is removed. Plastic A is identified as rigid PVC as it smells fishy when heated but does not crack or drip. Plastic B is identified as polystyrene as it melts with heat and continues burning after the flame is removed. The key helps determine the type of plastic through a process of elimination based on its observable properties when exposed to heat or fire.
ScienceShare.co.uk Shared Resource
The document provides instructions for an assignment to evaluate how human and natural activities affect the earth's environment. Learners are asked to create tables describing various human and natural activities that change the environment and their effects. They also must explain how the atmosphere has changed from early earth to today due to natural and human processes, and discuss potential solutions to reduce CO2 emissions and climate change.
ScienceShare.co.uk Shared Resource
The document provides instructions for an assignment to evaluate how human and natural activities affect the earth's environment. Learners are asked to create tables describing various human and natural activities that change the environment and their effects. They also must explain how the atmosphere has changed from early earth to today due to natural and human processes, and discuss potential solutions to reduce CO2 emissions and climate change impacts.
More Related Content
More from ScienceShare.co.uk
ScienceShare.co.uk Shared Resource
This document outlines a lesson on forces. It aims to teach students to:
1) Identify different types of forces and how they affect objects.
2) Explain how forces can affect an object's motion.
3) Compare the sizes of opposing forces and how unbalanced forces affect motion.
The lesson investigates friction by having students measure the force needed to drag a shoe on different surfaces. It also explains how balanced and unbalanced forces impact whether an object is stationary, accelerates, or decelerates.
ScienceShare.co.uk Shared Resource
This document contains information about an assignment for a BTEC Level 2 chemistry unit. It includes:
- The learner and assessor names
- Details of the three tasks and the assessment criteria they address
- A scenario providing context for the assignment
- Sources of information for learners to complete the tasks
- Templates for submitting work, assessor feedback, and internal verification.
ScienceShare.co.uk Shared Resource
This document provides information for an assignment on the periodic table and electronic structure for a Level 2 BTEC First Certificate in Applied Science. The assignment includes 5 tasks to provide evidence for 5 assessment criteria. Task 1 involves describing atomic structures of elements 1-20. Task 2 is an investigation of chemical properties of groups 1 and 7. Task 3 describes trends in atomic structure of these groups and draws diagrams. Task 4 explains why these elements are used as compounds. Task 5 explains trends in chemical behavior in relation to electronic structure. The assignment aims to show how reactivity relates to electronic configuration.
ScienceShare.co.uk Shared Resource
This document provides information for an assignment on the periodic table and electronic structure for a Level 2 BTEC First Certificate in Applied Science. The assignment includes 5 tasks to provide evidence for 5 assessment criteria. Task 1 involves describing atomic structures of elements 1-20. Task 2 is an investigation of the chemical properties of groups 1 and 7. Task 3 describes trends in atomic structure and draws diagrams of elements. Task 4 explains why groups 1 and 7 are used as compounds. Task 5 explains trends in chemical behavior in relation to electronic structure. The assignment aims to help students appreciate how reactivity relates to electronic configuration.
ScienceShare.co.uk Shared Resource
This document contains information for an assignment on controlling industrial reactions for a Level 2 BTEC First Certificate in Applied Science. The assignment includes 3 tasks to provide evidence for criteria on investigating how reaction rates are affected, explaining how factors affect industrial reaction rates, and analyzing how factors affect yields. The document provides learner and assessor details, assignment objectives and scenario, task descriptions aligned to criteria, sources for research, sign-off sections, and templates for recording observations and witness statements.
ScienceShare.co.uk Shared Resource
This document outlines an assignment on chemistry and the Earth for a grade. It lists 14 tasks for students to complete involving classifying chemicals as elements, mixtures, or compounds; analyzing physical properties of chemicals; drawing atomic structures of elements; describing chemical reactions of groups 1 and 7; illustrating molecules in elements, compounds, and mixtures; explaining uses of chemicals like brick, copper wire, and glass; and proving characteristics of mixtures and chemical changes. Students are asked to draw atomic structures, define isotopes, describe reactivity trends in the periodic table, and explain why compounds are more commonly used than pure elements.
ScienceShare.co.uk Shared Resource
The document describes a table showing the growth of a baby's length in millimeters at various weeks of pregnancy. It asks the reader to create a line graph displaying this data with weeks of pregnancy on the x-axis and length on the y-axis. It also asks when during pregnancy the baby is growing the fastest.
ScienceShare.co.uk Shared Resource
The document describes the development of a baby in the womb. It shows diagrams of a baby inside the mother's uterus and placenta, connected by the umbilical cord. The placenta and umbilical cord should be colored orange, while the uterus wall should be colored brown. The placenta allows nutrients and oxygen to move from the mother's blood to the baby's blood, while wastes and carbon dioxide move in the opposite direction, without the two blood supplies mixing. However, some harmful substances like alcohol, chemicals from cigarettes, and viruses can pass through the placenta and affect the developing fetus.
ScienceShare.co.uk Shared Resource
The document describes the development of a baby in the womb. It shows diagrams of a baby inside the mother's uterus and placenta, connected by the umbilical cord. The placenta and umbilical cord should be colored orange, while the uterus wall should be colored brown. The passage explains that nutrients and oxygen move from the mother's blood to the fetus's blood in the placenta, while wastes and carbon dioxide move in the opposite direction. However, some harmful substances like alcohol, chemicals from cigarettes, and viruses can cross the placenta and affect fetal development.
ScienceShare.co.uk Shared Resource
The human body is made up of 11 major organ systems that work together to keep us alive and functioning. These organ systems include the circulatory, respiratory, digestive, nervous, excretory, reproductive, immune, endocrine, integumentary, skeletal, and muscular systems. Each system is comprised of various organs that work cooperatively to perform important tasks necessary for survival.
ScienceShare.co.uk Shared Resource
Nerve cells have many connecting side branches and transmit information as electrical impulses. Red blood cells have no nucleus and a large surface area to carry oxygen. White blood cells have a large nucleus and fight infection.
ScienceShare.co.uk Shared Resource
This document contains two charts showing the ages when physical changes typically start for girls and boys growing up. The charts list ages 8 through 17 and suggest that puberty and other developments may begin around ages 10-12 for girls and ages 11-13 for boys as they mature into young adults.
ScienceShare.co.uk Shared Resource
This document contains 20 statements about puberty and reproduction and asks the reader to identify each one as true, partly true, or false. It covers changes during puberty like hair growth and periods, sex cells, hormones, wet dreams, feelings, and menstrual cycles in females in preparation for potential pregnancy. Maintaining cleanliness during puberty is also mentioned.
ScienceShare.co.uk Shared Resource
The male reproductive system consists of internal and external organs that work together for reproduction. The external organs are the penis and scrotum, which contains the testes where sperm are produced. The internal organs include the vas deferens, seminal vesicles, prostate gland, and urethra, which all play a role in ejaculation and the delivery of sperm.
ScienceShare.co.uk Shared Resource
This document discusses two main types of bonding: ionic bonding and covalent bonding. Ionic bonding involves the transfer of electrons from metal atoms to non-metal atoms, resulting in positively charged metal ions and negatively charged non-metal ions that are attracted to each other. Covalent bonding involves the sharing of electron pairs between non-metal atoms to form stable molecular structures. Examples of ionic compounds include sodium chloride and magnesium chloride, while examples of covalent compounds discussed are hydrogen gas, ammonia, and water.
ScienceShare.co.uk Shared Resource
The document provides an example key that can be used to identify plants based on their reproductive structures and physical characteristics. The key shows that plants can be identified as flowering plants, conifers, mosses or ferns depending on whether they reproduce from seeds or spores and the size of their leaves. It also prompts the reader to use the key to identify 4 example plants and create a similar key that could be used to identify animals based on attributes like color, habitat and number of legs.
ScienceShare.co.uk Shared Resource
The document provides a key for scientists to identify different types of plastics based on their properties when heated or burned. The key involves a series of yes/no questions to determine if the plastic melts with heat, burns, drips when burned, smells fishy or cracks when heated, and whether it continues burning after the flame is removed. Plastic A is identified as rigid PVC as it smells fishy when heated but does not crack or drip. Plastic B is identified as polystyrene as it melts with heat and continues burning after the flame is removed. The key helps determine the type of plastic through a process of elimination based on its observable properties when exposed to heat or fire.
ScienceShare.co.uk Shared Resource
The document provides instructions for an assignment to evaluate how human and natural activities affect the earth's environment. Learners are asked to create tables describing various human and natural activities that change the environment and their effects. They also must explain how the atmosphere has changed from early earth to today due to natural and human processes, and discuss potential solutions to reduce CO2 emissions and climate change.
ScienceShare.co.uk Shared Resource
The document provides instructions for an assignment to evaluate how human and natural activities affect the earth's environment. Learners are asked to create tables describing various human and natural activities that change the environment and their effects. They also must explain how the atmosphere has changed from early earth to today due to natural and human processes, and discuss potential solutions to reduce CO2 emissions and climate change impacts.
More from ScienceShare.co.uk (20)
ScienceShare.co.uk Shared Resource
- 1. WHAT LEVEL AM I WORKING AT? My levels for this module are…… My target is: UNIT 7E Acids and Alkalis Module Classwork Sc.1 Investigation Test Assessments Assessments Level 3 Start Check Level Know the names of some acids Know the taste of acids Know the meanings of some safety symbols Level 4 Describe some of the Hazard warning signs Know why some acids are more dangerous than others Describe some everyday uses of acids Know that alkalis are another type of dangerous chemical Identify some examples of common laboratory acids Identify some examples of common alkalis Know what a neutral substance is Know what an indicator is Level 5 Identify different types of indicators Explain how strength of acids and alkalis is determined by the pH scale Identify the pH numbers of strong and weak acids and alkalis Know what is meant by neutralisation Describe some everyday uses of neutralisation Target areas I need to work on from this unit: Level 6 1. _____________________ Explain how a neutral solution can be obtained Describe the word equation for neutralisation 2. _____________________ Relate the pH value of an acid or alkali to its hazards and corrosiveness 3. _____________________