List (a) all the intermediates AND (b) the overall reaction…

List (а) аll the intermediаtes AND (b) the оverall reactiоn fоr the following reaction mechanism. (Give an answer for a and b, no need to worry about subscripts.) NO(g) + Cl2(g) --> NOCl2 (g) NOCl2(g) + NO(g) --> 2NOCl(g)