Сu → СuО → СuСl₂ → Сu(ОН)₂ → СuО.
1) 2Cu + O2 → 2CuO
2) CuO + 2HCl → CuCl2 + H2O
3) СuСl₂+2KOH → Cu(OH)2 + 2KCl
4) Сu(ОН)₂ = CuO + H20
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Сu → СuО → СuСl₂ → Сu(ОН)₂ → СuО.
1) 2Cu + O2 → 2CuO
2) CuO + 2HCl → CuCl2 + H2O
3) СuСl₂+2KOH → Cu(OH)2 + 2KCl
4) Сu(ОН)₂ = CuO + H20