The provided chemical equation seems to be a mix of different reactions, with various reactants and products listed together. To write balanced chemical equations for each reaction individually, the reactants and products need to be properly separated.

Here are the balanced chemical equations for each individual reaction:

Fe2O3 + 3 H2O → 2 Fe(OH)3Na2O + H2O → 2 NaOHBaO + H2O → Ba(OH)2SO3 + H2O → H2SO4SO2 + 2 KOH → K2SO3 + H2OMgO + 2 HNO3 → Mg(NO3)2 + H2OCrO3 + 3 H2O → 2 H2CrO4Ba(OH)2 (aq) → Ba(OH)2 (aq)