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Автор - tamaramcclair

Помогите с ОВР
Cu+4HNO3=3Cu(NO3)2+2NO2+2H2O

Ответ

Автор - svetka1574


Сu + 4HNO3 = 3Cu(NO3)2 + 2NO2 + 2H2O

Cu(0)-2e = Cu(+2)   1  в-ль, ок-ие

N(+5) +1e = N(+4)  2  ок-ль, в-ие

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