Which of the following describe the net ionic equation for the neutralization of phosphoric acid with barium hydroxide?
H+ (aq) + OH- (aq) → H2O (l)
2 H3PO4 (aq) + 3 Ba2+ (aq) + 6 OH- (aq) → Ba3(PO4)2 (s) + 6 H2O (l)
6 H+ (aq) + 2 PO4 3- (aq) + 3 Ba2+ (aq) + 6 OH- (aq) → Ba3(PO4)2 (s) + 6 H2O (l)
2 H3PO4 (aq) + 3 Ba(OH)2 (aq) → Ba3(PO4)2 (s) + 6 H2O (l)