5) A mechanism for a naturally occurring reaction that destroys ozone is:
Step 1: O3(g) + HO(g) →HO2(g) + O2(g)
Step 2: HO2(g) + O(g) →HO(g) + O2(g)
What is the molecularity of the overall reaction?
C) none of these because molecularity is the difference of the exponents in the rate law
D) none of these because molecularity only refers to elementary steps