Final answer:
The rate law expression for the chemical reaction with a rate constant of 2.00 x 10-9 is rate = k[A]2. The reaction follows a second order rate law, where [A] represents the concentration of the reactant. The rate constant, k, has units of mol-1 L1 s-1.
Step-by-step explanation:
A chemical reaction with a rate constant of 2.00 x 10-9 has a second order rate law expression. The rate law is given by rate = k[A]2, where [A] represents the concentration of the reactant. The rate constant, k, has units of mol-1 L1 s-1.