The NH2OH is in acidic solution as a reactant and copper is reduced to Cu+. The rest is confusing so here you go. 2Cu2+ + 2NH3OH+ -> 2Cu+ + 2H20 + N2 + 4H+......your welcome. Solution The NH2OH is in acidic solution as a reactant and copper is reduced to Cu+. The rest is confusing so here you go. 2Cu2+ + 2NH3OH+ -> 2Cu+ + 2H20 + N2 + 4H+......your welcome..