The document provides instructions for making a baking soda volcano. It explains that the volcano eruption is the result of a chemical reaction between baking soda and vinegar that produces carbon dioxide gas. As the gas builds up pressure inside the plastic bottle, it causes bubbles (thanks to detergent) and the "lava" to erupt from the opening. Food coloring can be added to make the lava appear red-orange.
The document discusses different types of chemical reactions including synthesis, decomposition, single replacement, double replacement, and combustion reactions. It provides examples of each type of reaction and how to write and balance chemical equations to properly represent these reactions. Key aspects covered include reactants and products, word equations, chemical formulas and symbols, and balancing equations so the number of atoms of each element are equal on both sides.
This document describes an experiment to determine if chemical reactions occurred when combining different substances. The student mixed laundry detergent with water and baking soda with vinegar. Both mixtures showed signs of chemical reactions through temperature changes, bubbling, and smells. The purpose was to observe physical and chemical changes and determine if reactions were chemical based on indicators like heat production. The student concluded chemical reactions did occur and the experiment helped distinguish between physical and chemical changes.
The document discusses key challenges and considerations for preparing carve-out financial statements for a portion of a company's operations being sold. Some of the main issues addressed include:
1) Determining which assets and liabilities should be included, such as tangible/intangible assets, debt, pensions, and expenses.
2) Accounting for certain items like income taxes, impairments, and expenses may differ between the carve-out statements and parent company statements.
3) Additional reporting decisions arise if the carve-out entity will undergo an initial public offering. Proper identification and treatment of items is important to reflect the historical operations of the carve-out entity.
This document describes a volcano experiment involving a chemical reaction between vinegar and baking soda. Students are instructed to model clay into a volcano, add baking soda, food coloring and soap, then pour in vinegar to cause the volcano to erupt as the acidic vinegar reacts with the basic baking soda. Students are asked to observe and write down what happened in the reaction.
The document summarizes a chemistry class where students conducted experiments on chemical reactions and reviewed concepts like chemical changes, mixtures, and compounds. It provides instructions for upcoming homework assignments and announces a test on chemical reactions. Students performed experiments involving the reaction of magnesium with oxygen, adding marble chips to hydrochloric acid, and mixing chemical solutions, observing physical changes in each case. The class then reviewed the results and key characteristics of chemical reactions.
1. The document discusses chemical reactions, including what makes something a chemical reaction, different ways to describe reactions using word equations, chemical equations, and balanced equations.
2. It describes the main types of chemical reactions - synthesis, decomposition, single replacement, double replacement, and combustion reactions - and provides examples of each.
3. Guidelines are given for writing balanced chemical equations, including identifying the reaction type and using coefficients to balance the mass on each side.
The document provides instructions for making a baking soda volcano. It explains that the volcano eruption is the result of a chemical reaction between baking soda and vinegar that produces carbon dioxide gas. As the gas builds up pressure inside the plastic bottle, it causes bubbles (thanks to detergent) and the "lava" to erupt from the opening. Food coloring can be added to make the lava appear red-orange.
The document discusses different types of chemical reactions including synthesis, decomposition, single replacement, double replacement, and combustion reactions. It provides examples of each type of reaction and how to write and balance chemical equations to properly represent these reactions. Key aspects covered include reactants and products, word equations, chemical formulas and symbols, and balancing equations so the number of atoms of each element are equal on both sides.
This document describes an experiment to determine if chemical reactions occurred when combining different substances. The student mixed laundry detergent with water and baking soda with vinegar. Both mixtures showed signs of chemical reactions through temperature changes, bubbling, and smells. The purpose was to observe physical and chemical changes and determine if reactions were chemical based on indicators like heat production. The student concluded chemical reactions did occur and the experiment helped distinguish between physical and chemical changes.
The document discusses key challenges and considerations for preparing carve-out financial statements for a portion of a company's operations being sold. Some of the main issues addressed include:
1) Determining which assets and liabilities should be included, such as tangible/intangible assets, debt, pensions, and expenses.
2) Accounting for certain items like income taxes, impairments, and expenses may differ between the carve-out statements and parent company statements.
3) Additional reporting decisions arise if the carve-out entity will undergo an initial public offering. Proper identification and treatment of items is important to reflect the historical operations of the carve-out entity.
This document describes a volcano experiment involving a chemical reaction between vinegar and baking soda. Students are instructed to model clay into a volcano, add baking soda, food coloring and soap, then pour in vinegar to cause the volcano to erupt as the acidic vinegar reacts with the basic baking soda. Students are asked to observe and write down what happened in the reaction.
The document summarizes a chemistry class where students conducted experiments on chemical reactions and reviewed concepts like chemical changes, mixtures, and compounds. It provides instructions for upcoming homework assignments and announces a test on chemical reactions. Students performed experiments involving the reaction of magnesium with oxygen, adding marble chips to hydrochloric acid, and mixing chemical solutions, observing physical changes in each case. The class then reviewed the results and key characteristics of chemical reactions.
1. The document discusses chemical reactions, including what makes something a chemical reaction, different ways to describe reactions using word equations, chemical equations, and balanced equations.
2. It describes the main types of chemical reactions - synthesis, decomposition, single replacement, double replacement, and combustion reactions - and provides examples of each.
3. Guidelines are given for writing balanced chemical equations, including identifying the reaction type and using coefficients to balance the mass on each side.
This document provides instructions and background information for several chemistry experiments involving chemical reactions. The first experiment demonstrates that mixing ammonium nitrate and water is a physical, endothermic reaction that produces a cold pack. The second experiment shows that mixing calcium chloride and sodium bicarbonate produces carbon dioxide gas and causes a color change, indicating a chemical reaction. The document explains how to set up, carry out, observe, and analyze the results of these experiments. It also provides safety precautions and questions to help students understand the differences between physical and chemical reactions.
This document provides instructions for three chemistry experiments. It explains that when doing experiments, students should avoid directly smelling chemicals as some can be dangerous like ammonia. It advises not touching any substances and informing the teacher if any issues occur. Experiment 5 involves adding hydrogen peroxide to manganese dioxide to produce a black liquid. Experiment 6 mixes iron chloride and sodium hydroxide to produce a yellow-brown product. Experiment 1 combines zinc metal and copper nitrate solution, where the zinc starts as a solid.
Chemical reactions involve the rearrangement of atoms. There are two main types of chemical changes - synthesis reactions which combine simpler substances into more complex ones, and decomposition reactions which break down a substance into simpler parts. Chemical equations are used to represent chemical reactions, and must obey the law of conservation of mass by being balanced. Reactions can release or absorb energy depending on whether the bonds in the products are stronger or weaker than the bonds in the reactants. Living things and industry rely on exothermic and endothermic chemical processes.
This document is a webquest for 9th grade chemistry students that teaches about five types of chemical reactions: synthesis, decomposition, combustion, single displacement, and double displacement. Students watch videos demonstrating examples of each reaction. They then write an investigative report explaining each reaction type and predicting the products of example reactions. They also create a visual of a "crime scene" showing how the example reactants reacted based on their balanced equations and type of reaction. The goal is for students to understand chemical reactions and be able to identify reaction types and products.
Factors affecting rate of chemical reactionsAbigail Sapico
The document summarizes experiments that demonstrate factors affecting the rate of chemical reactions. The experiments show that increasing the concentration of reactants, surface area of reactants, temperature, or adding a catalyst can increase the reaction rate. The nature of reactants also influences the reaction rate, as some combinations react faster than others.
This document provides an overview of chemical reactions and equations. It discusses chemical changes and how they can be represented by balanced chemical equations. The main types of chemical reactions covered are combination reactions, decomposition reactions, displacement reactions, and oxidation-reduction reactions. Examples of each type of reaction are given. The document also explains how to balance chemical equations by ensuring equal numbers of each type of atom on both sides of the reaction equation.
- Chemical reactions involve reactants transforming into products through rearrangement of atoms.
- There are five main types of chemical reactions: combination, decomposition, single replacement, double replacement, and combustion.
- The type of reaction can be identified based on the reactants. Balancing chemical equations ensures the same number and type of atoms are on both sides.
The document discusses different types of chemical reactions including synthesis, decomposition, single displacement, and double displacement reactions. It provides examples of each type of reaction along with balanced chemical equations. It also describes the activity series of metals and how reactivity determines whether single displacement reactions will occur.
What is Recycling: 7 Benefits of RecyclingPacebutler
This presentation defines recycling as a process, a choice, and as a way of life. It also outlines the 7 basic benefits of recycling to individuals, society, and the environment.
This document provides instructions and background information for several chemistry experiments involving chemical reactions. The first experiment demonstrates that mixing ammonium nitrate and water is a physical, endothermic reaction that produces a cold pack. The second experiment shows that mixing calcium chloride and sodium bicarbonate produces carbon dioxide gas and causes a color change, indicating a chemical reaction. The document explains how to set up, carry out, observe, and analyze the results of these experiments. It also provides safety precautions and questions to help students understand the differences between physical and chemical reactions.
This document provides instructions for three chemistry experiments. It explains that when doing experiments, students should avoid directly smelling chemicals as some can be dangerous like ammonia. It advises not touching any substances and informing the teacher if any issues occur. Experiment 5 involves adding hydrogen peroxide to manganese dioxide to produce a black liquid. Experiment 6 mixes iron chloride and sodium hydroxide to produce a yellow-brown product. Experiment 1 combines zinc metal and copper nitrate solution, where the zinc starts as a solid.
Chemical reactions involve the rearrangement of atoms. There are two main types of chemical changes - synthesis reactions which combine simpler substances into more complex ones, and decomposition reactions which break down a substance into simpler parts. Chemical equations are used to represent chemical reactions, and must obey the law of conservation of mass by being balanced. Reactions can release or absorb energy depending on whether the bonds in the products are stronger or weaker than the bonds in the reactants. Living things and industry rely on exothermic and endothermic chemical processes.
This document is a webquest for 9th grade chemistry students that teaches about five types of chemical reactions: synthesis, decomposition, combustion, single displacement, and double displacement. Students watch videos demonstrating examples of each reaction. They then write an investigative report explaining each reaction type and predicting the products of example reactions. They also create a visual of a "crime scene" showing how the example reactants reacted based on their balanced equations and type of reaction. The goal is for students to understand chemical reactions and be able to identify reaction types and products.
Factors affecting rate of chemical reactionsAbigail Sapico
The document summarizes experiments that demonstrate factors affecting the rate of chemical reactions. The experiments show that increasing the concentration of reactants, surface area of reactants, temperature, or adding a catalyst can increase the reaction rate. The nature of reactants also influences the reaction rate, as some combinations react faster than others.
This document provides an overview of chemical reactions and equations. It discusses chemical changes and how they can be represented by balanced chemical equations. The main types of chemical reactions covered are combination reactions, decomposition reactions, displacement reactions, and oxidation-reduction reactions. Examples of each type of reaction are given. The document also explains how to balance chemical equations by ensuring equal numbers of each type of atom on both sides of the reaction equation.
- Chemical reactions involve reactants transforming into products through rearrangement of atoms.
- There are five main types of chemical reactions: combination, decomposition, single replacement, double replacement, and combustion.
- The type of reaction can be identified based on the reactants. Balancing chemical equations ensures the same number and type of atoms are on both sides.
The document discusses different types of chemical reactions including synthesis, decomposition, single displacement, and double displacement reactions. It provides examples of each type of reaction along with balanced chemical equations. It also describes the activity series of metals and how reactivity determines whether single displacement reactions will occur.
What is Recycling: 7 Benefits of RecyclingPacebutler
This presentation defines recycling as a process, a choice, and as a way of life. It also outlines the 7 basic benefits of recycling to individuals, society, and the environment.
2. Stanley Milgram (Avgust 15, 1933-
Decembar 20, 1984) bio je američki
socijalni psiholog. Najpoznatiji
je po svom kontraverznom
studiju o poslušnosti na
autoritet. Dobio je ideju
od holokausta iz Drugog
svetskog rata.
Napisao je knjigu o tome-
"Poslušnost autoritetu"
3. Ljudi su vrlo često još od ranog detinjstva
obučeni da primaju naređenja i direkcije od
autoritativnih figura. Eksperiment koji je
1961. godine na Univerzitetu Jejl sproveo
psiholog Stenli Milgram imao je za cilj da
ispita spremnost za povinovanje autoritetu
čak i onda kada su instrukcije koje autoritet
zadaje u kontradikciji sa opšteprihvaćenim
vrednostima.
4. Učesnicima je rečeno da igraju uloge
“učitelja” i da mogu da daju elektroškove
svojim “učenicima” (koji su zapravo bili
saradnici istraživača i znali su u čemu je
“caka”) kada daju netačan odgovor na
postavljeno pitanje. “Učenik” se nalazio u
drugoj prostoriji, a elektrošokovi su,
naravno, bili lažni – umesto njih, Milgram
je puštao snimljen zvuk koji je “učiteljima”
nesumnjivo kazivao da su kažnjavani
“učenici” u velikim bolovima i da žele da
prekinu eksperiment.
5.
6. Uprkos protestima “učenika”, mnogi
“učitelji” su nastavljali sa davanjem
elektroškova onda kada im je figura od
autoriteta (u ovom slučaju istraživač)
govorila da to učine, povećavajući
voltažu elektroškova nakon svakog
pogrešnog ogdovora do mere koja je za
lažne učenike mogla biti (takođe lažno,
srećom) smrtonosna.
7. Slični eksperimenti
sprovođeni su i
nakon originalnog,
a i oni su davali
skoro identične
rezultate, navodeći
na zaključak da su
ljudi spremni da se
odreknu svojih principa i vrednosti ako
im osoba od autoriteta tako naredi.