Sodium hydroxide reacts with carbon dioxide as follows: 2NaOH(s) + CO2(g) â Na2CO3(s) + H2O(1) Which reagent is the limiting reactant when 1.70 mol NaOH and 1.00 mol CO2 are allowed to react? How many moles of Na2CO3 can form under these conditions? How many moles of the excess reactant remain after the completion of the reaction?