In a double displacement reaction, the cations and anions of two compounds exchange their places resulting in the formation of new compounds.
The given reactants are sodium phosphate ([tex]Na_{3}PO_{4}[/tex]) and copper (II) sulfate([tex]CuSO_{4}[/tex]). Sodium phosphate and copper sulfate react to form sodium sulfate and copper phosphate.
The balanced chemical equation for the reaction between sodium phosphate and copper sulfate can be represented:
[tex]2Na_{3}PO_{4}(aq)+3CuSO_{4}(aq)-->Cu_{3}(PO_{4})_{2}(s)+3Na_{2}SO_{4}(aq)[/tex]
The product formed copper phosphate is insoluble solid and the other product sodium sulfate is soluble.
