Calcium ion: Ca2+
Chloride ion: Cl-
The chemical symbol (not formula) of calcium is Ca.
The empirical formula for calcium carbonate is CaCO3. It consists of one calcium ion (Ca2+) bonded to one carbonate ion (CO32-) which carries an overall charge of 2-.
calcium cation = Ca2+ carbonate ion = CO32- the charges should cancel and you have the correct formula
The compound formed from Ca and As is calcium arsenide (Ca3As2). The formula is determined by balancing the charges of the calcium ion (Ca2+) and arsenic ion (As3-) in order to achieve a neutral compound.
When calcium (Ca) reacts with sulfur (S), they form calcium sulfide (CaS), a compound where one calcium ion is bonded to one sulfur ion through an ionic bond. The chemical formula for this compound is CaS.
Calcium ion is Ca2+ and the carbonate ion is CO32-
The formula for calcium ion is Ca^2+ and for phosphate ion is PO4^3-. When these ions combine, they form calcium phosphate (Ca3(PO4)2).
The formula for calcium sulfide is CaS. It consists of one calcium ion (Ca2+) and one sulfide ion (S2-).
The chemical symbol (not formula) of calcium is Ca.
The formula for the ionic compound formed between a Calcium ion (Ca^2+) and a hydroxide ion (OH-) is Ca(OH)2. This compound is known as calcium hydroxide.
Ca^2+
The phosphate ion is (PO4)3-. Hence, Calcium phosphate is Ca3(PO4)2 as the Calcium ion is Ca2+)
Calcium selenide, CaSe, is formed.
The compound containing calcium and the carbonate ion is calcium carbonate. Its chemical formula is CaCO3.
Calcium sulfide has the chemical formula CaS.
The empirical formula for calcium carbonate is CaCO3. It consists of one calcium ion (Ca2+) bonded to one carbonate ion (CO32-) which carries an overall charge of 2-.
The chemical formula for calcium sulfate hexahydrate is CaSO4·6H2O. It consists of one calcium ion (Ca2+), one sulfate ion (SO42-), and six water molecules (H2O) per formula unit.