Solutions of calcium phosphate and iron (iii) acetate are mixed to produce calcium acetate and iron (iii) phosphate

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The question has no question content. But let's do the balanced reaction.

Ca₃(PO₄)₂(aq) + 2Fe(C₂H₃O₂)₃(aq) → 3Ca(C₂H₃O₂)₂(aq) + 2FePO₄(s)

Explanation:

The calcium phosphate is formed by the ions calcium (Ca²⁺) and phosphate (PO₄³⁻), so to do the compound we must replace the charges:

Ca₃(PO₄)₂.

The iron (III) acetate is formed by the ions iron(III) (Fe⁺³) and acetate C₂H₃O₂⁻, and its formula is Fe(C₂H₃O₂)₃.

The products of the reaction will be calcium acetate, Ca(C₂H₃O₂)₂, and iron (III) phosphate, FePO₄. Thus, the reaction is:

Ca₃(PO₄)₂(aq) + Fe(C₂H₃O₂)₃(aq) → Ca(C₂H₃O₂)₂(aq) + FePO₄(s)

To be balanced, the amount of the elements must be the same on both sides of the reaction. Som we multiply Ca(C₂H₃O₂)₂ by 3, and Fe(C₂H₃O₂)₃(aq) and FePO₄ by 2:

Ca₃(PO₄)₂(aq) + 2Fe(C₂H₃O₂)₃(aq) → 3Ca(C₂H₃O₂)₂(aq) + 2FePO₄(s)

The acetates are soluble, and calcium is not an exception, so it will be in aqueous phase; the phosphates are insoluble, calcium is an exception, but iron (III) is not, so it will precipitate.