Ni(0) + H(+)N(+5)O(-2) = Ni(+2)N(+5)O(-2) + N(+2)O(-2) + H(+)O(-2)
Ni(0) -2e = Ni(+2) 3 в-ль, ок-ие
N(+5) +3e = N(+2) 2 ок-ль,в-ие
3Ni +8 HNO3 = 3Ni(NO3)2 + 2NO + 4H2O
Ni(0) + H(+)N(+5)O(-2) = Ni(+2)N(+5)O(-2) + N(+2)O(-2) + H(+)O(-2)
Ni(0) -2e = Ni(+2) 3 в-ль, ок-ие
N(+5) +3e = N(+2) 2 ок-ль,в-ие
3Ni +8 HNO3 = 3Ni(NO3)2 + 2NO + 4H2O