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Activity
Royal Society of Chemistry

Mass Changes in Chemical Reactions—Microscale Chemistry

For Teachers 6th - 10th Standards
What better way is there to introduce conservation of mass than a few simple experiments? Young chemists conduct two chemical reactions, take the masses of reactants and products, then compare their results to determine...
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Worksheet
Curated OER

Limiting Reactant Problems

For Students 10th - Higher Ed
In this chemical reaction worksheet, students determine the limiting reactant in the equations given plus determine the amount of moles of product produced. This worksheet has 6 problems to solve.
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Worksheet
Curated OER

Conservation of Mass

For Students 6th - 8th
In this conservation of mass worksheet, students experiment with vinegar, baking soda, a balloon and a flask. They compare the mass of the closed system of reactants before the experiment to the mass of the products after the experiment...
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Worksheet
Curated OER

Conservation of Mass-Balancing Equations Study Guide

For Students 7th - 9th
In this conservation of mass worksheet, students balance 4 equations and identify the products, the reactants and the kind of reaction. Students then answer 5 questions about the conservation of mass.
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Worksheet
Curated OER

Percent Yield

For Students 9th - 12th
In this percent yield worksheet, students solve 4 problems. They find the percent yield given the chemical reaction, the mass of the reactants and the mass of the products. Given the percent yield students find the liters of a substance...
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Worksheet
Curated OER

WS 4.3 Stoichiometry Part I

For Students 10th - 12th
In this stoichiometry learning exercise, students use four balanced equations to calculate mole of products made, moles of reactants needed for chemical reactions to proceed and mass of reactants needed to produce products.
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Lesson Plan
Curated OER

Chemistry Practice

For Teachers 10th - 11th
In this chemistry overview worksheet, students calculated the volume of different gases and liquids given in a word problem. Students had to calculate the molecular mass and write the empirical formula and the molecular formula.
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Worksheet
Curated OER

Mass/Mass Problems

For Students 10th - 12th
In this mass worksheet, students calculate how much of any product will form from a given amount of reactant. This worksheet has 7 problems to solve.
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Worksheet
Curated OER

Limiting Reactant

For Students 10th - 12th
For this chemistry worksheets, students calculate the amount of reactants and products are produced by the given equations. Students also calculate the number of moles as well as the mass of the given compounds.
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Worksheet
Curated OER

Mass-Mass Problems

For Students 10th - Higher Ed
In this chemical reactions worksheet, learners calculate the grams of product from a given amount of reactants. This worksheet has 7 problems to solve.
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Worksheet
Curated OER

Limiting Reactant Exercise

For Students 10th - 11th
In this chemistry instructional activity, students write the balanced equation for the problem at the top of the sheet. Then they determine which reactant is the limiting reactant and which one is in excess. Students also explain the...
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Worksheet
Curated OER

Stoichiometry

For Students 10th - 12th
In this stoichiometry worksheet, learners use balanced equations for chemical reactions to determine the percent yield and the mass of product produced. This worksheet has five problems to solve.
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Worksheet
Curated OER

Quantitative Relationships in Chemical Equations

For Students 10th - 12th
In this chemical equations learning exercise, students balance the equations and then determine the number of moles of product or reactant. This learning exercise has 7 problems to solve.
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Worksheet
Curated OER

Additional Stoichiometry Review Problems

For Students 11th - Higher Ed
In this stoichiometry worksheet, students interpret a chemical equation, determine number of moles produced or mass of product, and solve for the limiting reactant for reactions. This worksheet has 25 problems to solve.
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Worksheet
Curated OER

Stoichiometry

For Students 10th - Higher Ed
In this stoichiometry worksheet, students balance equations, give the names of the reactants and products, and calculate how many grams of product could be produced with a given amount of reactant. This worksheet has 2 word problems.
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Worksheet
Curated OER

The "Laws" and Principles of Chemical Reactions

For Students 10th - 12th
In this chemical reactions worksheet, students review the law of conservation of mass, the principle of definite proportions, and balancing equations. This worksheet has 3 problems to solve.
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Worksheet
Curated OER

Limiting Reagents and Percent Yield Problems

For Students 10th
Twelve questions about the various calculations of mass and yield are given here. There is significant practice of molarity calculations and consideration of the reactant and product balance.
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Worksheet
Curated OER

Chemistry: Chemical Reaction

For Students 10th - 12th
In this chemical reactions worksheet, students name the reactants and products, balance the equation, calculate the molecular weight of the reactants and products, and classify each reaction type. Students fill in a table of solubility...
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Worksheet
Curated OER

The "Laws" and Principles of Chemical Reactions

For Students 10th - 12th
In this chemical reaction principles learning exercise, students read about definite proportions and the law of conservation of mass. Students read about how to balance a chemical equation. Then students complete 20 fill in the blank, 2...
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Worksheet
Curated OER

Gas Stoichiometry Practice Sheet

For Students 9th - 12th
In this gas stoichiometry learning exercise, students determine the volume of gases in 4 problems given the temperature, the pressure, and the masses of the reactants. They find the limiting reactant in one problem at STP.
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Worksheet
Curated OER

What is a Chemical Reaction?-Evidence of Change

For Students 10th - 12th
For this chemical reactions worksheet, learners experiment with hydrochloric acid and copper (I) chloride to identify the types of reactions they undergo with various other substances. They also observe the law of conservation of mass...
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Worksheet
Curated OER

Article - "Designer Catalysts"

For Students 10th - 12th
In this catalyst worksheet, students define catalyst and enzyme and explain how these work in a chemical reaction. Students calculate molar mass of a compound. This worksheet has 7 short answer questions and 2 problems to solve.
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Lesson Plan
Beyond Benign

Green"er" Precipitation Reaction

For Students 9th - 12th
All sodium carbonate may not have the same amount of carbonate, but it should have the same percent. Learners write and balance an equation to predict the chemical reaction between sodium carbonate and zinc acetate. Through the lab...
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Worksheet
Curated OER

Conservation During Chemical Reactions

For Students 9th - 12th
For this chemical reaction worksheet, students are given the details of an experiment where sodium chloride and silver nitrate are mixed in a chemical reaction. Students answer nine questions about the chemical reaction, they determine...