Multiple Choice
When the concentrations of the reactants are increased,the rate of the reaction increases.This is best explained by
A) an increase in the fraction of molecules that have enough energy to react.
B) an increase in the rate constant.
C) an increase in the average potential energy of the molecules.
D) an increase in the frequency of the molecular collisions.
E) an increase in the kinetic energy of the molecules.
Correct Answer:

Verified
Correct Answer:
Verified
Q59: If the rate law for a reaction
Q60: The balanced chemical equation and rate law
Q61: The rate law for the chemical reaction<br>5Br<sup>-</sup>(aq)+
Q62: The reaction 3NO → N<sub>2</sub>O + NO<sub>2</sub>
Q63: The acid-catalyzed reaction of acetone,CH<sub>3</sub>COCH<sub>3</sub>,with iodine can
Q65: For the reaction<br>IO<sub>3</sub><sup>-</sup>(aq)+ 5I<sup>-</sup>(aq)+ 6H<sup>+</sup>(aq)→ 3I<sub>2</sub>(aq)+ 3H<sub>2</sub>O(l)<br>The
Q66: Which of the following reactions is not
Q67: In a first-order reaction,the half-life is 139
Q68: The rate constant for a first-order reaction
Q69: For the reaction<br>(CH<sub>3</sub>)<sub>3</sub>CCl(aq)+ OH<sup>-</sup>(aq)→ (CH<sub>3</sub>)<sub>3</sub>COH(aq)+ Cl<sup>-</sup>(aq)<br>It is