Write the formula of the ionic compound formed from each pair of cations and anions. Strontium and phosphate, Calcium and bicarbonate, Magnesium and nitrate

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The formula of the ionic compound formed from strontium and phosphate is Sr3(PO4)2.

The formula of the ionic compound formed from calcium and bicarbonate is Ca(HCO3)2.

The formula of the ionic compound formed from magnesium and nitrate is Mg(NO3)2.