Consider the net ionic equation: 3Ca+2 (aq) + 2PO4-3 (aq) → Ca3(PO4)2 (s)
Which of the following unbalanced chemical equations could give rise to this net ionic equation?
A. CaCl2 + Na3PO4 → Ca3(PO4)2 + H2O
B. CaC2 + H3PO4 → Ca3(PO4)2 + C2H2
C. Both of the above reactions.
D. None of the above reactions.