The anhydrous form used as a drying agent is CaSO4
There are hydated forms, CaSO4 0.5H2O (plaster of paris) and CaSO4.2H2O, gypsum
Calcium sulfide is CaS. This is the empirical formula as well.
Calcium = Ca Carbon = C oxide = O(2-) Calcium carbonate = CaCO3
The chemical formula for Calcium oxide is CaO. A single calcium atom bonds with a single oxygen atom to make this compound, and a link can be found below for more information.CaO
Ca3P2 or Ca3(PO4)2 See related question below for more details on how to find empirical formulas.
The empirical formula for calcium and sulfur is CaS, which represents the simplest whole number ratio of atoms in the compound.
If you mean the compound formed from calcium and iodine, it is CaI2. It is named calcium iodide.
The empirical formula for calcium bromide dihydrate is CaBr2·2H2O. This means there are two bromide (Br) ions for every calcium (Ca) ion, and two water (H2O) molecules per unit.
The empirical formula would be CaBr2 since it contains a ratio of 1 calcium to 2 bromine atoms.
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 empirical formula is CaBr2. This is because calcium has a 2+ charge (Ca2+) and bromine has a 1- charge (Br-), so the compound would need two bromine ions to balance the charge of one calcium ion.
CaCo3
It is an empirical formula.