At a constant volume and amount of gas, how are pressure and temperature related? A.
directly
B.
inversely
C.
not related

It will appear as o2(g) as a reactant 

Answer it is also known as the completion state is untrue of the activation complex;

B.1 - hydrogren-1 can only mean there is 1 neutron. it's obvious there is 1 proton or else it wouldn't be hydrogen, so they wouldn't put a number after it unless they were indicating the number of neutrons