2Cu + O2 = 2CuO
Cu(0) -2e = Cu(+2) 2 в-ль, ок-ие
O2(0) + 4e = 2O(-2) 1 ок-ль, в-ие
СuO + H2SO4 = CuSO4 + H2O
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
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2Cu + O2 = 2CuO
Cu(0) -2e = Cu(+2) 2 в-ль, ок-ие
O2(0) + 4e = 2O(-2) 1 ок-ль, в-ие
СuO + H2SO4 = CuSO4 + H2O
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4