I am trying to balance the equation for the reaction of sodium bicarbonate and sulfuric acid.

This is what I have gotten so far:

2 NaHCO3 + 2 H2SO4 ---> 2NaSO4 + 3 H2O + 2CO2

I am trying to figure out where I went wrong, because I have more oxygen atoms on the product side, than on the reactant side.

Original equation:

NaHCO3 + H2SO4 ---> NaSO4 + H2O + CO2