I got the molecular formula is NaHCO3+H2SO4=Na2SO4+CO2+H2CO3 and i got the total ionic formula is NaOH+H2CO2(aq)= Na2CO3 + HOH but i am having trouble finding the net ionic formula can you please help me thank you

I suspect that is because molecular and ionic formulas have flaws in them (or they could be typos--in fact some appear to be typos).

NaHCO3 + H2SO4 ==> NaHSO4 + H2O + CO2

Of course, I can help you with finding the net ionic formula. To do this, we need to start with the balanced total ionic equation and then eliminate the spectator ions.

Given the total ionic formula: NaOH + H2CO2(aq) = Na2CO3 + HOH

1. Write down the balanced chemical equation:
NaOH + H2CO2(aq) = Na2CO3 + H2O

2. Identify the spectator ions. These are the ions that are present on both sides of the equation and do not participate in the actual chemical reaction. In this case, the spectator ions are Na+ and OH-.

3. Remove the spectator ions from the equation. Since Na+ and OH- are present on both sides of the equation, we can eliminate them to form the net ionic equation.

The net ionic equation for the given reaction is:
H2CO2(aq) = Na2CO3 + H2O

Please note that in the net ionic equation, the ions that do not participate in the reaction have been removed. This allows us to focus on the specific chemical reaction and the substances involved.

Hope this helps! Let me know if you have any further questions.