write down the formula unit of the compounds formed from the following cations and anions. name three of them.

Question

cations= Mg2+, Fe3+, Ce4+ Anioins=Cl-, Cr2O72-, PO43-

Answer 1

MgCl2 magnesium chloride
MgCr2O7 magnesium dichromate
Mg3 (PO4)2 magnesium phosphate
FeCl3 ferric chloride iron(II) chloride
Fe2(Cr2O7)2 ferric dichromate iron(III) dichromate
FePO4 ferric phosphate
CeCl4
Ce(Cr2O7)2
Ce3(PO4)4