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)
Which species is an intermediate?

Question

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) Which species is an intermediate?

Quizplus · Accepted Answer

The species HO₂ is an intermediate because it is formed in the first step of the mechanism and then consumed in the second step to regenerate O₂. HO and O are not intermediates because they are reactants or products throughout the mechanism. O₃ is not an intermediate because it is only present as a reactant in the first step and not involved in the second step.

A Mechanism for a Naturally Occurring Reaction That Destroys Ozone