：A:CO(g)+Cl2(g)→COCl2(g)B:2NO(g)→N2(g)+O2(g)C:NH4HS(s)→NH3(g)+H2S(g)D:2HBr(g)→H2(g)+Br2(g)答案: NH4HS(s)→NH3(g)+H2S(g)10、