posted by Sam .
is this a catalyst
NH2NO2 + OH <==> H2O + NHNO-2
NHNO-2----> N2O(g) + OH-
Actually I think more specifics are required; however, it appears to be a catalyst since the OH^- is used but regenerated in the next reaction. You have missed a negative sign on the OH^- in the first equation.
NH2NO2+OH-->I need to help in this equation ... the full mecanism of nitramid with oH catalyst