Tn o2+ x=?

Question

Apparently I shouldn't be able to answer this but just need to understand why. Any help appreciated.

Answer 1

Odie,

 

This question is confusing. Could you explain what Tn and O2 are? Are these chemical elements or molecules? What is x?

 

If this is a Chemistry question, you should label it as such (if you really want a useful answer).