1)
Zn + Cl2 = ZnCl2
ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl
Zn(OH)2 = ZnO + H2O
ZnO + CO2 = ZnCO3
2)
CuO + 2HCl = CuCl2 + H2O
CuO + 2NaOH = Cu(OH)2 + Na2O
3CuO + P2O5 = Cu3(PO4)2
