What is the valency of calcium in `CaCO_(3)?`

The atomic mass of Ca is 40 and the molecular mass of CaCO_(3) is 100 . What is the percentage of Ca in CaCO_(3) ?

Some elements and their valencies are given The chemical formula of calcium oxide is CaO . What is the valency of calcium? .

What is the percentage of calcium in calcium carbonate (CaCO_(3)) ?

Define valency . Calculate the valency of calcium in calcium phosphate, Ca_(3)(PO_(4))_(2)

The number of electrons in the valence shell of calcium is

The number of electrons in the valence shell of calcium is:

The number of electrons in the valence shell of calcium is:

10 g of a sample of a mixture of CaCl_(2) and NaCl is treated to precipitate all the calcium as CaCO_(3) . This CaCO_(3) is heated to convert all the Ca to CaO and the final mass of CaO is 1.62 g.The percent by mass of CaCl_(2) in the origial mixture is