NO3

[McKenna_4A]

Why isn't NO3 included in the overall equation for O2 ---> ozone if it is used as a reactant?

[Caitlyn Tran 2E]

I'm not sure what the context for this question is, but usually something would not be included in the overall equation if it is a catalyst or an intermediate. Hope this helps!

[Ryan Yee 1J]

NO is a catalyst, and since it is present at the start and end of the reaction, then it is not written in the expression.

[chrisleung-2J]

Yes, it is correct that because NO3 is a catalyst it would not be included in the overall rxn equation.

[CameronDis2K]

If any compound is not present in the overall reaction, then it can be considered an intermediate (as it cancels out in the reactants and products). Therefore, NO3 can be considered an intermediate.