Calcium has a charge of +2. the chart lists the charges of different ions. which are possible equations for an ionic compound with calcium? cao, camg, or caf2 ca2cl, cana, or cap caf, camg, or cana cao, caf2, or cacl2

, , or

Explanation:- For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Here calcium metal is having an oxidation state of +2, thus the anions must  bear a negative charge to form neutral ionic compound.

Thus the possibilities are:

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