Question

40. What is the catalyst in this reaction mechanism? Step 1 Cl + O3 ? ClO + O2 Step 2 ClO + O ? Cl + O2 Net Reaction O3 + O ? 2O2 (A) O (B) O2 (C) ClO (D) Cl 41. Which statement best explains why a catalyst increases the rate of a reaction? (A) It provides an alternative mechanism with a lower activation energy. (B) It makes the equilibrium constant for the reaction larger. (C) It raises the temperature of the reaction mixture. (D) It increases the concentration of the reactants.

          40. What is the catalyst in this reaction mechanism?
Step 1 Cl + O3 ? ClO + O2
Step 2 ClO + O ? Cl + O2
Net Reaction O3 + O ? 2O2
(A) O (B) O2 (C) ClO (D) Cl
41. Which statement best explains why a catalyst increases the rate of a reaction?
(A) It provides an alternative mechanism with a lower activation energy.
(B) It makes the equilibrium constant for the reaction larger.
(C) It raises the temperature of the reaction mixture.
(D) It increases the concentration of the reactants.

40. What is the catalyst in this reaction mechanism?
Step 1 Cl + O3 ? ClO + O2
Step 2 ClO + O ? Cl + O2
Net Reaction O3 + O ? 2O2
(A) O (B) O2 (C) ClO (D) Cl
41. Which statement best explains why a catalyst increases the rate of a reaction?
(A) It provides an alternative mechanism with a lower activation energy.
(B) It makes the equilibrium constant for the reaction larger.
(C) It raises the temperature of the reaction mixture.
(D) It increases the concentration of the reactants.

Added by Craig J.

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