Question

The net ionic equation for the reaction of calcium bromide and sodium phosphate contains which of the following species?

A.2Br(aq)
B.3Ca²⁺(aq)
C.6NaBr(aq)
D.PO₄³⁻(aq)
E.2Ca₃(PO₄)₂(s)

Answer 1

E. 2Ca3(PO4)2(s). The net ionic equation for the reaction of calcium bromide with sodium phosphate involves Ca^2+(aq) ions combining with PO4^3-(aq) ions to form solid calcium phosphate, Ca3(PO4)2(s),

Step-by-step explanation:

The net ionic equation for the reaction between calcium bromide and sodium phosphate principally involves the products of the reaction.

From the provided information, we know that calcium phosphate, which has the chemical formula Ca3(PO4)2, is insoluble and will precipitate out of solution as a solid.

Therefore, the net ionic equation will include calcium ions (Ca2+) combining with phosphate ions (PO43-) to form calcium phosphate.

The choice E. 2Ca3(PO4)2(s) is correct because it represents the solid that precipitates out of solution. The other choices represent ions that would either remain in solution as spectator ions or not be part of the net ionic equation for this specific reaction.