Write the reaction equations: CUO — Cu – CuCl2 – Cu (0H) 2 – CuSO4, CuCl2 – Cu – CuO – Cu (NO3) 2 – Cu (OH) 2

1.2CuO = (t) 2Cu + O2 (temperature above the arrow)
2.Cu + Cl2 = CuCl2
3.CuCl2 + 2NaOH = Cu (OH) 2 (precipitate (down arrow)) + 2 NaCl
4. Cu (OH) 2 + H2SO4 = CuSO4 + 2H2O

1.CuCl2 = t Cu + Cl2
2.2Cu + O2 = 2CuO
3. CuO + 2HNO3 = Cu (NO3) 2 + H2O
4.Cu (NO3) 2 + 2NaOH = Cu (OH) 2 + 2NaNO3



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