Barium hydroxide solution is added to phosphoric acid solution. After all acid–base steps and precipitate formation are complete, which equation best represents the overall net ionic reaction?
a) 3Ba2+(aq)+2PO43−(aq)→Ba3(PO4)2(s)
b) 3Ba2+(aq)+2HPO42−(aq)→Ba3(PO4)2(s)+2H+(aq)
c) 3Ba(OH)2(aq)+2H3PO4(aq)→Ba3(PO4)2(s)+6H2O(l)
d) 2Ba2+(aq)+3PO43−(aq)→Ba2(PO4)3(s)