Napisz równania połówkowe i dobierz współczynniki:
a) hno3 + no -> h2o + no2
b) h2s + o2 -> so2 + h2o
c) h2s + h2so3 -> s + h2o
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a)
N(V) + 1e -> N(IV) /*2
N(II) - 2e -> N(IV)
2HNO3 + NO -> H2O + 3NO2
b)
S(-II) - 6e -> S(IV) /*2
2O(0) + 4e -> 2O(-II) /*3
2H2S + 3O2 -> 2SO2 + 2H2O
c)
S(-II) - 2e -> S(0) /*2
S(IV) + 4e -> S(0)
2H2S + H2SO3 -> 3S + 3H2O