aqueous solutions of sodium hydroxide (naoh) and sulfuric acid (h2so4) will react to yield sodium sulfate and water. in the balanced equation for this reaction, what is the lowest possible whole number coefficient for water? aqueous solutions of sodium hydroxide (naoh) and sulfuric acid (h2so4) will react to yield sodium sulfate and water. in the balanced equation for this reaction, what is the lowest possible whole number coefficient for water?