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Zn + 2HCl = ZnCl2 + H2
Zn + 2NaOH + 2H2O = Na2[Zn(OH)4] + H2
ZnO + H2SO4 = ZnSO4 + H2O
ZnO + 2NaOH + H2O = Na2[Zn(OH)4]
Zn(OH)2 + 2HCl = ZnCl2 + 2H2O
Zn(OH)2 + 2NaOH = Na2[Zn(OH)4]
Zn(OH)2 + 6NH3 = [Zn(NH3)6](OH)2
