Curated OER
Chemical Equations
In this chemical equations worksheet, students determine the empirical formulas for chemical compounds and balance chemical equations. This worksheet has 1 fill in the blank question and 4 problems to solve.
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Balanced Systems of Equations
Students solve equations. In this algebra instructional activity, students relate solving equations to a balanced scale. They add, subtract, multiply and divide on both sides to keep the scale balanced.
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Additional Stoichiometry Review Problems
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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WS 10.6 Alkane Reactions: Combustion & Halogenation of Alkanes
For this alkane reactions worksheet, students define combustion, and write the balanced chemical reactions for the combustion of three different alkanes. They also complete six chemical reactions by writing the products.
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Avoiding Carbon Dioxide Emissions from Burning Fossil Fuels
Chemistry and earth science meet in a lesson on carbon dioxide emissions. After reading about atmospheric problems caused by using fossil fuels, science stars balance equations for the burning of different alkanes. They compute the...
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2005 U.S. National Chemistry Olympiad - Local Section Exam
National Chemistry Olympiad tests are released after their use each year, since they cannot use them again for this event. The result: outstanding comprehensive assessment resources for general chemistry classes! This 2005 version covers...
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Chapter 15 Review, Section 2: Acid-Base Titration and pH
Keep it simple with this chemistry assignment. Learners examine an acid-base titration graph and answer four questions about the data. Then they will balance neutralization equations and calculate molarity for several specific solutions....
Serendip
Using Models to Understand Photosynthesis
Is your class in the dark about photosynthesis? Shed some sunlight on an important biological process with a thoughtful activity. After answering questions to help determine their level of knowledge, learners work with chemical equations...
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Chemical Equations
In this chemical equations worksheet, students write mass balance equations and charge balance equations. Students write the system of equations to solve for solution concentrations at equilibrium. This worksheet has 21 problems to solve.
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Completing/Balancing Word/Symbol Equations
In this chemistry worksheet, learners predict the reactants and products of chemical reactions. They complete and balance 10 chemical equations.
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Alkane Reactions
In this alkane reactions worksheet, students define combustion and write the balanced equations for the combustion reactions. Students write the structural formulas of the products including all possible isomers and their percent...
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Reactivity Series of Metals
In this reactivity series learning exercise, 10th graders complete 10 short answer questions on metals. They identify and balance chemical reactions.
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Determine the molarity of an unknown HCl solution
Students complete a lab to help develop a comprehension of stiochiometry. They review equation writing, equation balancing, and stiochiometry. Studnets are given the following information: Sloppy students from the previous class have...
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Chemical Equations and Stoichiometry
In this chemical equations worksheet, students write ten combustion equations given a hydrocarbon compound. They write the equations and balance each.
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Experiment on Measuring Reaction Rates
Learners investigate the rate of a chemical reaction. In this rate of reactions lesson plan, students use an electronic balance to measure the change in mass of a chemical reaction between hydrochloric acid and calcium carbonate. They...
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Enthalpy and Thermochemistry Problem Set
In this thermochemistry worksheet, students answer questions based on the reaction of charcoal and liquid oxygen. Students write a balanced chemical equation, determine the limiting reagent, calculate the mass of each product, and amount...
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Acids and Bases
For this acids and bases worksheet, high schoolers write equations for dissociation reactions, they complete neutralization reactions and they identify strong acids and strong bases.
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Chemical Equations
In this chemical equations worksheet, students review chemical changes, define catalysts and coefficients, and review the five general types of reactions. This worksheet has 12 fill in the blank and 42 short answer questions.
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Theoretical Yield and Percent Yield
In this chemical reaction worksheet, students balance equations and then determine the theoretical yield and percent yield for the reaction. This worksheet has 4 problems to solve.
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The "Laws" and Principles of Chemical Reactions
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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Chemistry 130
In this chemical compounds worksheet, students calculate moles, molar concentration, and volume of given compounds. Students balance equations, give the formula and charge of polyatomic ions, and draw Lewis electron dot structures. This...
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Chemical Compounds
In this chemical compounds worksheet, students write the name of compounds from their chemical formula, balance equations, write electronic configurations for elements, and draw Lewis dot structures. This worksheet has 8 fill in the...
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Chemistry 152 - Competencies
In this chemistry competencies worksheet, students calculate rate law, balance equations, determine pH of solutions, give the oxidation number for atoms, and write in formulas. This worksheet has 4 fill in the blank questions and 20...
Royal Society of Chemistry
Mass Changes in Chemical Reactions—Microscale Chemistry
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...