Ответ:
CuBr2 + 2NaOH = Cu(OH)2↓ + 2NaBr
Cu(OH)2↓ = CuO + H2O
CuO + H2SO4 = CuSO4 + H2O
CuSO4 + BaCl2 = CuCl2 + BaSO4↓
CuCl2 + Zn = ZnCl2 + Cu↓
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Ответ:
CuBr2 + 2NaOH = Cu(OH)2↓ + 2NaBr
Cu(OH)2↓ = CuO + H2O
CuO + H2SO4 = CuSO4 + H2O
CuSO4 + BaCl2 = CuCl2 + BaSO4↓
CuCl2 + Zn = ZnCl2 + Cu↓