Question

What is the formula equation for the reaction between sulfuric acid and dissolved sodium hydroxide if all products and reactants are in the aqueous or liquid phase?
Upper H upper C l (a q) plus upper N a upper O upper H (a q) right arrow upper N a upper C l (s) plus upper H subscript 2 upper O (l).
Upper H subscript 2 upper S upper O subscript 4 (a q) plus upper C a (upper O upper H) subscript 2 (a q q) right arrow upper C a upper S upper O subscript 4 (a q) plus 2 upper H subscript 2 upper O (l).
Upper H subscript 2 upper S upper O subscript 4 (a q) plus 2 upper N a upper O upper H (a q) right arrow upper N a subscript 2 upper A upper O subscript 4 (a q) plus 2 upper H subscript 2 upper O (l).
2 upper H subscript 3 upper P upper O subscript 4 (a q) plus 3 upper C a (upper O upper H) subscript 2 (a q) right arrow upper C a subscript 3 (upper PO upper O) subscript 4 (s) plus 6 upper H subscript 2 upper O (l).

Answer 1

Balanced formula equation (all aqueous/liquid as requested):

H2SO4(aq) + 2 NaOH(aq) → Na2SO4(aq) + 2 H2O(l)

Ionic and net-ionic forms:

Complete ionic: 2 H+(aq) + SO4^2−(aq) + 2 Na+(aq) + 2 OH−(aq) → 2 Na+(aq) + SO4^2−(aq) + 2 H2O(l)

Net ionic (simplified): 2 H+(aq) + 2 OH−(aq) → 2 H2O(l) (or simply H+(aq) + OH−(aq) → H2O(l) after canceling the factor 2).