Question

When aqueous solutions of magnesium sulfate and potassium phosphate are combined, solid magnesium phosphate and a solution of potassium sulfate are formed. The net ionic equation for this reaction is:
(Specify states such as (aq) or (s)

Answer 1

Answer:

Magnesium Sulfate (MgSO₄) (aq.) → Mg⁺²(aq.) + SO₄^-2 (aq.)

Potassium Phosphate (K₃PO₄) (aq.) → 3K⁺(aq.) + PO₄^-3(aq.)

when an aqueous solution of Potassium phosphate and an aqueous solution of magnesium sulfate are combined then a double replacement reaction will take place.

The magnesium cations, Mg⁺², and the phosphate anions, PO₄^-3 combine, it will form magnesium phosphate, Mg₃(PO₄)₂, an insoluble solid that precipitates out of solution.

The other product of the reaction will be aqueous potassium sulfate, K₂SO₄.

Net reaction will be :

3MgSO₄(aq.) + 2K₃PO₄(aq.)  → Mg₃(PO₄)₂(solid) + 3K₂SO₄ (aq.)

Ionic reaction :

3Mg⁺²(aq.) + 3SO₄^-2 (aq.) + 6K⁺(aq.) + 2PO₄^-3(aq.) → Mg₃(PO₄)₂(solid) + 6K⁺(aq.) +  3SO₄^-2 (aq.)

Answer: Net ionic reaction :

3Mg⁺²(aq.) + 2PO₄^-3(aq.) → Mg₃(PO₄)₂(solid)