Write the molecular formulae of all the compounds that can be formed by the combination of following ions Cu2+, Na+, Fe3+, Cl SO4 -2, PO4 -3

Compounds are formed by the combination of cation and anion.
By combining all the possible positive ions with negative ions, we get:
CuCl2/ CuSO4/ Cu3(PO4)2

NaCl/ Na2SO4/ Na3PO4

FeCl3/ Fe2(SO4)3 / FePO4

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