Zn-Zno-Zncl2-Znso4-zn(oh)2
2Zn + O2 = 2ZnO ZnO + 2HCl = ZnCl2 + H2O ZnCl2 + H2SO4 = ZnSO4 + 2HCl ZnSO4 + 2NaOH = Zn(OH)2 + Na2SO4