because that's a convention.
Ca is the periodic symbol for Calcium. S is the periodic symbol for Sulfur. As such, CaS2 is a compound of calcium and sulfur.
CaS is the chemical formula of calcium sulfide.
CaS
The Chemical Formula for Calcium Sulphate is is CaS4.
CaS is the chemical formula for calcium sulphide. NB The elemental letters should NOT be separated by spaces. 'Ca S' is incorrect. I should be written as ' CaS'.
Ca is the periodic symbol for Calcium. S is the periodic symbol for Sulfur. As such, CaS2 is a compound of calcium and sulfur.
Calcium sulfide is CaS. This is the empirical formula as well.
CaS is the chemical formula of calcium sulfide.
CaS is Calcium Sulfide
CaS
The calcium sulfide is CaS.
The chemical formula of calcium hydrogensulfite is Ca(HSO3)2.
Calcium and sulfur will react in a 1:1 ratio to form calcium sulfide with the formula CaS.
CaS
Calcium sulfide has the chemical formula CaS.
CaS, calcium sulfide, with Ca2+ and S2- ionsCaS, calcium sulfide, with Ca2+ and S2- ions
The Chemical Formula for Calcium Sulphate is is CaS4.