Write the reaction equations CuO – Cu – CuCl2 – Cu (OH) 2 – CuSO4; CuCl2 – Cu – CuO – CU (NO3) 2 – Cu (OH) 2
| September 22, 2021 | education
A) 1) 2CuO → 2Cu + O2 (decomposition reaction);
2) Cu + Cl2 → CuCl2 (compound reaction);
3) CuCl2 + 2NaOH → Cu (OH) 2 ↓ + 2NaCl (compound reaction);
4) Cu (OH) 2 ↓ + H2SO4 → CuSO4 + 2H2O (exchange reaction).
B) 1) СuCl2 + Fe → Cu + FeCl2 (substitution reaction);
2) 2Cu + O2 → 2CuO (compound reaction);
3) CuO + 2HNO3 → Cu (NO3) 2 + H2O (exchange reaction);
4) Cu (NO3) 2 + 2KOH → 2KNO3 + Cu (OH) 2 ↓ (exchange reaction).
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