Problem- 1.As a chemical reaction proceeds, the rate of the reaction tends to:

a. increase. b. decrease. c. remain constant. d. oscillate.

2. If tripling the concentration of reactant A multiplies the initial rate of the reaction by nine, the reaction is _______ order in A.

a. zeroth b. first c. second d. third

3 A + B - C + D Rate = k[A][B] The overall order of this reaction is:

a. first. b. second. c. third. d. fourth.

4. W + X --Y + Z Rate = k[W] The order of this reaction with respect to X is:

a. zeroth. b. first. c. second. d. third.

I want you to explain the chemistry in this problem