Curated OER
Instantaneous Reaction Rate
In this instantaneous reaction rate worksheet, students draw an energy diagram for a given reaction, they determine the rate law for a reaction, they determine a rate constant for a reaction and they determine the reaction rate for a...
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Free Radical Reactions
In this chemistry worksheet, students look at the diagrams for the chemistry reaction. Then they write down the correct chemical reaction.
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Recognizing and Describing Chemical Changes
Seventh graders distinguish between physical and chemical changes in both natural and technological settings. They identify the reactants and products for a given chemical reaction. they then write simple chemical equations given the...
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Balancing Equations
In this chemical equations worksheet, students review the rules in balancing equations and then balance 11 chemical reactions.
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Acids, Copper, and Zinc
Students observe chemical reactions using post-1982 pennies. They observe the reaction of an acid with zinc but not copper under the same conditions over a two week period.
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Theoretical Yield and Percent Yield
In this chemical reaction learning exercise, students balance equations and then determine the theoretical yield and percent yield for the reaction. This learning exercise has 4 problems to solve.
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Equilibrium Equations
In this chemical reactions worksheet, students calculate the equilibrium constant for given reactions. Students decide if reactions are homogeneous or heterogeneous and if the equilibrium favors reactants or products. This worksheet has...
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Unit 5- Oxidation Reduction
In this oxidation reduction worksheet, students read the notes provided about the different types of chemical reactions. Students identify the reactants and products and answer fill in the blank and short answer questions.
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Matter and Change
In this matter and change learning exercise, students answer 24 questions on topics such as elements, compounds, mixtures and chemical reactions. Students answer questions about the properties of matter such as their physical state and...
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Writing Equilibrium Constants
In this equilibrium constants worksheet, students write the reaction quotient for each of the chemical reactions. Students compare the reaction quotient with the equilibrium constant. This worksheet has 5 problems to solve and 5 short...
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Additional Stoichiometry Problems
In this stoichiometry learning exercise, students calculate the mass or compounds or volume or gases produced from given chemical reactions. This learning exercise has 5 problems to solve.
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Mass-Mass Problems
In this chemical reactions instructional activity, students calculate the grams of product from a given amount of reactants. This instructional activity has 7 problems to solve.
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Stoichiometry Problems - Limiting Reagents
In this stoichiometry worksheet, students determine the limiting reagents and the mass of compound precipitated in given chemical reactions. This worksheet has 4 problems to solve.
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Chemical Equilibrium Homework Problem Set
In this chemistry worksheet, students write an equilibrium expression for each of the chemical reactions listed. Then they use the equilibrium constant to calculate the equilibrium pressure of each species under the given conditions.
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Bouncing Balls
Students create a polymer ball in the lab. In this chemistry lesson, students identify the different properties of the polymer they created. They explain what type of chemical reaction took place.
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Stoichiometry Practice Problems
In this stoichiometry instructional activity, students calculate the mass of product created from given chemical reaction equations. This instructional activity has 4 problems to solve.
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Stoichiometry Problems - Limiting Reagents
In this stoichiometry worksheet, students determine the limiting reagent and mass of precipitate produced in given chemical reactions. This worksheet has 5 problems to solve.
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Balancing Equations
For this chemical equations worksheet, learners review the steps to balancing equations and then complete a graphic organizer by balancing 10 chemical reactions.
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Reaction rates and Equilibrium
Students listen to a lecture on the collision theory. They discuss the reactant and product changes during a chemical reaction. Students are taught the factors affecting reaction rates. They complete a lab on entropy, heat and free...
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Percent Yield
In this percent yield activity, high schoolers 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...
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Energy and Metabolism
This four-page worksheet queries young biologists about the process of metabolism in the human body. They describe types of energy, laws of thermodynamics, and chemical reactions related to the processing of energy. Plenty of space is...
Pingry School
An Introduction to Qualitative Analysis
Compounds take on different properties than their elemental components. How can scientists determine those elements? A lab-based activity has learners explore several double replacement reactions to analyze compounds qualitatively. They...
Beyond Benign
The Heat Is On
Explore an exothermic reaction with a quick lab investigation. The activity builds on the previous lessons by examining an ingredient in many shampoos. Scholars record temperature data as sodium hydroxide and water interact.
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Activity #4 What Do Equations Mean?
Students practice with writing and balancing simple chemcial equations. they comprehend that chemical equations are a method of using a set of univeral symbols to represent what happens experimentally in chemical reactions. Pupils...