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2009 U. S. National Chemistry Olympiad - Local Section Exam
Here is a copy of a past national challenge exam that you can use in your general chemistry course as a unit or semester review. Sixty multiple-choice questions query learners on properties of matter, stoichiometry, reactions, and...
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2001 U.S. National Chemistry Olympiad National Exam Part II
Only eight problems are on this competitive national chemistry exam. It required the balancing of chemical equations, solving stoichiometry questions, and more. This is part two of three of the national exam. Also available is a local...
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The Stoichiometry Behind Pollution
Students research car emissions of various cars and find the toxins emitted. For this stoichiometry lesson, students calculate the relationship between reactants and products in a chemical reaction. Students collect data on emissions...
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Stoichiometry (gases and masses)
In this chemistry worksheet, students identify how many liters of oxygen can be consumed to form carbon dioxide. Then they identify how many liters of sulfur dioxide are produced if the gas is at STP.
Kenan Fellows
Reaction Stoichiometry—How Can We Make Chalk?
What is a reasonable percent yield in the manufacturing process? Scholars develop a process for producing chalk in the third lesson of a six-part series. Then, they must determine the theoretical and percent yield. Discussions about...
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Chemical Equations
Wow! This comprehensive collection of slides will walk your chemistry class through the foundation of chemical reactions, teach them to balance equations, differentiate types of reactions, and calculate stoichiometry problems. This will...
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The Energy Debate - Stoichiometry
Students determine crude oil can be separated into useful fractions by a process of fractional distillation. They write a balanced equation for the reaction between a hydrocarbon and oxygen.
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Review of Stoichiometry
In this chemistry worksheet, students answer 50 multiple choice questions on stoichiometric calculations, the mole and chemical reactions.
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Vocabulary - Stoichiometry
In this stoichiometry instructional activity, students write in the definition for the 6 terms associated with stoichiometry including actual yield, percent yield, and limiting reactant.
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Energy and Stoichiometry
In this stoichiometry worksheet, learners calculate the amount of heat energy released in combustion equations. This worksheet has 4 problems to solve.
Curated OER
Stoichiometry
In this stoichiometry worksheet, students use balanced equations for chemical reactions to determine the percent yield and the mass of product produced. This worksheet has five problems to solve.
Cornell University
Thin Films
Combine mathematics and science to calculate measurements of unmeasurable materials. Individuals use knowledge of density and volume to determine the thickness of the film used in production. They also apply stoichiometry to determine...
Pingry School
Synthesis of an Insoluble Ionic Salt: A Stoichiometry Experiment
Challenge young scientists to design their own experimental procedures. They write the procedure for properly preparing two grams of a water-insoluble ionic salt. To finish, they perform the experiment and collect data to prove their...
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Moles, Stoichiometry, and Concentration
In this stoichiometry instructional activity, students practice calculating moles, molar mass, and percentage composition of given compounds. This instructional activity has 55 problems to solve.
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Chemistry 115 Practice Exam 3
Radioactive decay, pH, properties of elements, organic compounds, and stoichiometry are all touched upon through this practice chemistry exam. It always helps learners to take a practice test in preparation for the actual exam. This...
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Practice Problems for the Gas Laws
In this gas laws worksheet, student practice solving problems using Graham's law, ideal gas law, and gas stoichiometry. This worksheet has 11 problems to solve.
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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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Stoichiometry
In this stoichiometry worksheet, students practice calculating moles, molarity, and the concentration of a solution in molarity. This worksheet has 12 multiple choice questions and 3 problems to solve.
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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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Stiochiometry: Quantifying Changes in the Environment
Students examine stoichiometry. In this chemical reaction and mole lesson, students complete an experiment based on readiness levels to explore that changes are quantified in chemical reactions.
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Stoichiometry
Students research chemical formulas and balance chemical equations. In this chemical equations lesson students complete a class activity on chemical equations and answer questions.
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Gas Stoichiometry Practice Sheet
In this gas stoichiometry activity, 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.
Curated OER
Mathematical and Chemical Relationships of Stoichiometric Problems
Students review key words used in stoichiometry such as mole, molar mass, Avogadro's number, and mass - mole relationships. They participate in a series of small experiments to explore solving stoichiometry problems in the laboratory.
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Stoichiometry
Students discover stoichiometric relationships in chemical equations. They review mole to mole conversions. They understand mass/particle conversions. They perform a lab to reinforce stoichiometry.
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