CuO + 2HCl = CuCl2 + H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
PbO + 2HNO3 = Pb(NO3)2 + H2O
Pb(NO3)2 + Ba(OH)2 = Pb(OH)2 + Ba(NO3)2
Pb(OH)2 + 2NaOH (t)= Na2PbO2 + 2H2O
Na2PbO2 + 2H2O = 2NaOH + Pb(OH)2
ZnSO4 + 2KOH = Zn(OH)2 + K2SO4
Zn(OH)2 + 2HCl = ZnCl2 + 2H2O
ZnCl2 + Ba = BaCl2 + Zn
CuO + 2HCl = CuCl2 + H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
PbO + 2HNO3 = Pb(NO3)2 + H2O
Pb(NO3)2 + Ba(OH)2 = Pb(OH)2 + Ba(NO3)2
Pb(OH)2 + 2NaOH (t)= Na2PbO2 + 2H2O
Na2PbO2 + 2H2O = 2NaOH + Pb(OH)2
ZnSO4 + 2KOH = Zn(OH)2 + K2SO4
Zn(OH)2 + 2HCl = ZnCl2 + 2H2O
ZnCl2 + Ba = BaCl2 + Zn