2H2SO4(конц.) + C => 2SO2↑ + СO2↑ + 2H2O
S(+6)+2e--->S(+4) | 2
C(0) -4e--->C(+4) |1
4 Zn + 10 HNO3 => 4 Zn(NO3)2 + N2O + 5 H2O
Zn (0) => Zn (+2) 4N (+5) => N (+1) 2
2H2SO4(конц.) + C => 2SO2↑ + СO2↑ + 2H2O
S(+6)+2e--->S(+4) | 2
C(0) -4e--->C(+4) |1
4 Zn + 10 HNO3 => 4 Zn(NO3)2 + N2O + 5 H2O
Zn (0) => Zn (+2) 4
N (+5) => N (+1) 2