28. Which point (labeled with a letter) on the following reaction coordinate diagrams corresponds to the transition state or activated complex? E Reaction path Energy

5 of 5 7. When a catalyst is added to a reaction the activation Energy is (increased or decreased), (more or less) energy is needed to react the new activated complex, and (more or less) collisions have sufficient energy to (increase or decrease) the reaction rate.

Which one of the following statements is False?     The rate constant depends on the activation energy of a reaction.     A catalyst lowers the activation energy of a reaction.     Rate constants are not temperature dependent.

Question 12 Which of the following best describes the rate law? O A theoretical equation that describes how the rate of reaction depends on temperature, orientation and number of collisions. O A theoretical equation that describes how the rate of reaction depends on the concentration of reactants. O An experimentally determined equation that describes how the rate of reaction depends on temperature, orientation and number of collisions. O An experimentally determined equation that describes how the rate of reaction depends on the concentration of reactants.