Chemical Kinetics: Rate and Order of Reaction
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Questions and Answers

What are the substances that go away over a period of time in a chemical reaction called?

  • Oxygen
  • Reactants (correct)
  • Combustion materials
  • Products
  • What term is used for the substances that are newly formed with a different set of properties from their original material in a chemical reaction?

  • Oxygen
  • Combustion materials
  • Products (correct)
  • Reactants
  • Which area of chemistry is concerned with the speed or rate at which chemical reactions occur?

  • Chemical kinetics (correct)
  • Physical chemistry
  • Inorganic chemistry
  • Organic chemistry
  • What determines the rate of a given chemical reaction?

    <p>Temperature of the surroundings</p> Signup and view all the answers

    What factor can affect the rate of a chemical reaction by increasing the frequency of collisions between reactant molecules?

    <p>Surface area of reactants</p> Signup and view all the answers

    Which factor can alter the rate of a chemical reaction by influencing the energy and frequency of collisions between reactant molecules?

    <p>Concentration of reactants</p> Signup and view all the answers

    What is the relationship between the rate of the forward reaction and the rate of the backward reaction in a chemical equilibrium?

    <p>The rate of the forward reaction equals the rate of the backward reaction</p> Signup and view all the answers

    According to the Brønsted-Lowry theory, what defines an acid?

    <p>A substance that donates protons</p> Signup and view all the answers

    Which statement best describes a reversible reaction in a chemical equation?

    <p>It uses a double-headed arrow to indicate simultaneous forward and backward reactions</p> Signup and view all the answers

    What does the power to which a reactant appears in its rate law expression determine?

    <p>The reaction order of the reactant</p> Signup and view all the answers

    In chemical equilibrium, what happens to the concentrations of reactants and products?

    <p>There is no net change in their concentrations</p> Signup and view all the answers

    How did Johannes Nicolaus Brønsted and Thomas Martin Lowry define acids and bases?

    <p>Based on their ability to donate or accept protons</p> Signup and view all the answers

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