Chemical Kinetics and Reaction Rates
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Questions and Answers

Which of the following best defines the rate of a chemical reaction?

  • The total amount of reactant consumed
  • The change in concentration of a product per unit of time (correct)
  • The total amount of product formed
  • The change in concentration of a reactant per unit of time

    • Which of the following statements about reaction rates is true?

  • Reaction rates are only affected by temperature
  • Reaction rates can vary greatly (correct)
  • Reaction rates are always constant
  • All chemical reactions have the same rate

    • What is the average rate of the reaction H2O2(aq) → H2O(l) + ½ O2(g) at 300 seconds?

  • 0.298 M/s (correct)
  • 0.458 M/s
  • 0.697 M/s
  • 0.566 M/s

    • What is the accumulated mass of O2 at 180 seconds?

    <p>6.784 g</p> Signup and view all the answers

    What is the concentration of H2O2 at 600 seconds?

    <p>0.094 M</p> Signup and view all the answers

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