a) 2CuO+COCl2 =(t°, H2O, p)= CuCl2+CuCO3↓
CuCl2+2NaOH = Cu(OH)2↓+2NaCl
Cu(OH)2 =(t°)= CuO+H2O↑
2CuO+SO2Cl2 = CuSO4+CuCl2
б) 3S+2SO2Cl2 = SCl2+S2Cl2+2SO2↑
SO2+H2O ⇄ H2SO3
H2SO3+2KCN = K2SO3+2HCN↑
K2SO3+2NaClO4 = Na2SO3+2KClO4↓
a) 2CuO+COCl2 =(t°, H2O, p)= CuCl2+CuCO3↓
CuCl2+2NaOH = Cu(OH)2↓+2NaCl
Cu(OH)2 =(t°)= CuO+H2O↑
2CuO+SO2Cl2 = CuSO4+CuCl2
б) 3S+2SO2Cl2 = SCl2+S2Cl2+2SO2↑
SO2+H2O ⇄ H2SO3
H2SO3+2KCN = K2SO3+2HCN↑
K2SO3+2NaClO4 = Na2SO3+2KClO4↓