July 2023 1 7 Report
Какие уравнения химических реакций соответствуют цепочке превращений Cu(OH)²-CuO-CuSO⁴?
1.Cu+O²=CuO
2.Cu(OH) ²=CuO+H²O
3.CuO+H²=Cu+H²O
4.Cu(OH) ²+2HCI=CuCl²+2H²O
5.CuO+H²SO⁴=CuSO⁴+H²O
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