Chapter 17 Quiz - Chemistry

15 Questions | Total Attempts: 124

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Chemistry Quizzes & Trivia

Questions and Answers
  • 1. 
    Every collision results in a completed reaction.
    • A. 

      True

    • B. 

      False

  • 2. 
    The likelihood of a completed reaction depends first on how energetic the initial collision is.
    • A. 

      True

    • B. 

      False

  • 3. 
    An increase in temperature always reduces reaction rate.
    • A. 

      True

    • B. 

      False

  • 4. 
    An increase in pressure (only relevant with gases) can increase the reaction rate.
    • A. 

      True

    • B. 

      False

  • 5. 
    A catalyst increases the reaction rate by ___________.
    • A. 

      Decreasing the amount of space between particles

    • B. 

      Reducing the activation energy of a reaction

    • C. 

      Increasing the kinetic energy of the particles

    • D. 

      Increasing the collision rate

  • 6. 
    The symbol, Ea, stands for ______.
  • 7. 
    The activation energy of a reaction is _______________.
    • A. 

      The energy necessary to break old bonds

    • B. 

      The amount of energy required to form new bonds

    • C. 

      The potential energy of the reactants

    • D. 

      The potential energy of the products

  • 8. 
    Static equilibrium within a system means that the forward reaction is progressing at the same rate as the reverse reaction.
    • A. 

      True

    • B. 

      False

  • 9. 
    Dynamic equilibrium of a system occurs when the products equal the reactants.
    • A. 

      True

    • B. 

      False

  • 10. 
    Chemical equilibrium for a reaction is different when placed under new conditions.
    • A. 

      True

    • B. 

      False

  • 11. 
    In a reaction rate energy diagram, the reaction is considered ___________ when the potential energy of the products is lower than that of the reactants.
    • A. 

      Endothermic

    • B. 

      Exothermic

    • C. 

      Kinetic

    • D. 

      Equilibrium

  • 12. 
    Catalysts are useful for increasing reaction rates because they are not consumed in the reaction and may, therefore, be reused.
    • A. 

      True

    • B. 

      False

  • 13. 
    Which of the following will decrease the reaction rate of a chemical reaction in a gaseous system?
    • A. 

      Introducing a catalyst

    • B. 

      Lowering the temperature

    • C. 

      Increasing the pressure

    • D. 

      Increasing the kinetic energy of the particles in the system

  • 14. 
    Enzymes lose functionality when the temperature of the system is too high.
    • A. 

      True

    • B. 

      False

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