Stoichiometry
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Questions and Answers

Which law is stoichiometry founded on?

  • Law of conservation of matter
  • Law of conservation of volume
  • Law of conservation of mass (correct)
  • Law of conservation of energy
  • What does stoichiometry calculate if the amounts of the separate reactants are known?

  • The empirical determination
  • The ratio of positive integers
  • The amount of the product (correct)
  • The amount of the reactants
  • In the balanced equation CH4 + 2 O2 → CO2 + 2 H2O, what does the number 2 represent?

  • The number of methane molecules
  • The number of oxygen atoms (correct)
  • The number of water molecules
  • The number of carbon atoms
  • What is the result of the chemical equation CH4 + 2 O2 → CO2 + 2 H2O?

    <p>Complete combustion</p> Signup and view all the answers

    What does stoichiometry illustrate about the relationship between reactants and products?

    <p>The ratio of positive integers</p> Signup and view all the answers

    Which law is the foundation of stoichiometry?

    <p>Law of Conservation of Mass</p> Signup and view all the answers

    What does stoichiometry calculate if the amounts of the reactants are known?

    <p>The amount of the products</p> Signup and view all the answers

    What does the balanced equation CH4 + 2 O2 → CO2 + 2 H2O represent?

    <p>Complete combustion of methane</p> Signup and view all the answers

    What does stoichiometry illustrate about the relationship between reactants and products?

    <p>The ratio of quantities</p> Signup and view all the answers

    If the amount of one reactant is known and the quantity of the products can be determined, what can stoichiometry calculate?

    <p>The amount of the other reactants</p> Signup and view all the answers

    Study Notes

    Stoichiometry

    • Stoichiometry is founded on the Law of Conservation of Mass.
    • Stoichiometry allows the calculation of the amount of products that will be produced in a chemical reaction if the amounts of the reactants are known.
    • In the chemical equation CH4 + 2 O2 → CO2 + 2 H2O, the number 2 represents two molecules of O2.
    • The chemical equation CH4 + 2 O2 → CO2 + 2 H2O represents the reaction between methane and Oxygen gas that produces Carbon Dioxide and water.
    • Stoichiometry illustrates that the relationship between reactants and products is quantifiable and follows the Law of Conservation of Mass.
    • The Law of Conservation of Mass is the foundation of stoichiometry and is used to calculate the amount of reactants and products involved in a chemical reaction.
    • The amount of the other reactants and products involved in the reaction can be calculated if the amount of one reactant is known.

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    Test your understanding of stoichiometry with this quiz! Explore the relationship between reactants and products in chemical reactions, and learn how to calculate the quantities using ratios of positive integers.

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