Ca^2+
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.
The phosphate ion is (PO4)3-. Hence, Calcium phosphate is Ca3(PO4)2 as the Calcium ion is Ca2+)
Calcium ion: Ca2+ Chloride ion: Cl-
Calcium selenide, CaSe, is formed.
The compound containing calcium and the carbonate ion is calcium carbonate. Its chemical formula is CaCO3.
The chemical formula for calcium chloride is CaCl₂. This formula is determined by recognizing that calcium (Ca) has a +2 charge and each chloride ion (Cl) has a -1 charge. To balance the charges, two chloride ions are needed for each calcium ion, resulting in the formula CaCl₂.
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-.