You must have written the problem incorrectly. I assume you meant you want the net ionic equation for H3PO4 and Ba(OH)2.
Ba(OH)2(s) + H3PO4(l) ==> Ba3(PO4)2(s) + H2O(l)
If the Ba(OH)2 is in solution, then
Ba^+2(aq) + 2OH^-(aq) + H3PO4(l) ==>Ba3(PO4)2(s) + H2O(l)
Neither equation is balanced. I've left that for you to do depending upon what you intended.
What is the net ionic reaction of Barium Phosphate and Phosphoric Acid? I tried
H + 2PO4 + 3Ba + OH -> Ba3(PO4)2 + H2O, and
6H + 2PO4 + 3Ba + 6OH -> Ba3(PO4)2 + 6H2O
but the homework software says both are wrong. What is wrong with it?
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