helloidkbye helloidkbye 03-05-2017 Chemistry contestada Heelp Balance the chemical reactions : Na2O + H2O ---> 2NaOH K2O + H2O ---> KOH MgO + H2O ---> Mg(OH)2 CaO + H2O ---> Ca(OH)2 SO2 + H2O ⇄ H2SO3 SO3 + H2O ---> H2SO4