Zn + H2SO4 = ZnSO4 + H2 ZnSO4 + 2KOH = Zn(OH)2 + K2SO4 Zn(OH)2 + HCl = (ZnOH)Cl + H2O (ZNOH)Cl + HCl = ZnCl2 + H2O Zn(OH)2 + 2NaOH = Na2[Zn(OH)4]