contestada

The decomposition of ozone is described by the following chemical equation:
203 (g) → 302(g)
Suppose a two-step mechanism is proposed for this reaction, beginning with this elementary reaction:
03 (g) →O2(g) + O(g)
Suppose also that the second step of the mechanism should be bimolecular.
Suggest a reasonable second step. That is, write the balanced chemical equation of a bimolecular elementary reaction that would complete the proposed mechanism