ZnO+2HCl=ZnCl2+H2OZnO+2NaOH+H2O=Na2[Zn(OH)4]
ZnO + H2SO4=ZnSO4 + H2OZnO + 2NaOH= Na2ZnO2 + H2O
ZnO+2HCl=ZnCl2+H2OZnO + 2NaOH= Na2ZnO2 + H2O