Из приведённых уравнений реакций NaOH + НСl = NaCl + Н20 3) 2НС1 + Zn = ZnCl2 + Н2 4Р + 502 = 2Р205 4) CuO + H2S04 = CuS04 + Н20
к ОВР относятся А) 1,3 Б) 2, 4 В) 2,3 Г) 3,4​
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