Calcium carbonate is heat at very high temperatures (near 1000°C) and it decomposes into Calcium oxide and Carbon dioxide: CaCO3 --Δ--> CaO + CO2 When water is added to Calcium oxide, the...
Yes, they are calcium salts.
no
Calcium can be obtianed from calcium chloride. It requires much energy to do so, but it can.
Calcium is used by our body to make bones. Calcium carbonate is used to make chalks. Compounds of calcium are found in toothpaste.