What would the Net Ionic Equation be for the following:

NH3 (aq) + HC2H3O2 (aq)

NaOH (aq) + H2SO4 (aq)

H2S (aq) + Ba (OH) 2 (aq)

The net equations are obtained from the double displacement of the cations and anions, then balance.

NH3 (aq) + HC2H3O2 (aq) = NH4 + (aq) + C2H3O2 - (aq)

H + (aq) + C2H3O2 - (aq) + NH3 (aq) - > NH4 + (aq) + C2H3O2 - (aq)

2NaOH (aq) + H2SO4 (aq) = Na2SO4 (s) + 2H2O (aq)

H2S (aq) + Ba (OH) 2 (aq) = BaS (s) + 2H2O (aq)