Answer Happy

2. Balance the following by the change in oxidation number method: a) H2O + Mnoy + clo → MnO2 + + он 10:2 +7-2 -21 bet + Cr2O72- + H2S 2013+ + S +7420 c) H2O + P + HOCI → H3PO4 + Cl + H+ d) Cu + H+ + NO3 → Cu2+ + NO2 + H2O e) PbO2 + HI → PbI2 + 12 + H2O