• ZnO + H2O = Zn(OH)2

• ZnCO3 = ZnO + CO2

• ZnO + CO = Zn + CO2

• ZnO + 2HCl = ZnCl2 + H2O

• Zn(NO3)2 + 2NH3 + H2O = ZnO + 2NH4NO3

• ZnO + 2HNO3 = Zn(NO3)2 + H2O

• ZnO + H2SO4 = ZnSO4 + H2O

• ZnO + 2NaOH = Na2ZnO2 + H2O

• Zn + CuO = ZnO + Cu

• MgO + Zn = ZnO + Mg