Question

write the chemical formula of gypsum?​

Answer 1

Answer:

CaSO4. 2H2O

Explanation:

CaSO4. 2H2O(calcium sulphate dihydrate)

is the chemical formula of gypsum

Answer 2

Gypsum:

• Gypsum is composed of calcium Sulphate (CaSO4) and water (H2O).
• It chemical name is calcium sulphate dihydrate (CaSO4,2H2O).
• Gypsum is a common mineral. It is found in layers that were formed under salt water millions of year ago. When water evaporated, it left the mineral behind.
• Gypsum  is mined from sedimentary rock formations around the world. It takes the form of crystals which can at times be found projecting from rocks-leading to its old English name of the Spear Stone.
• Gypsum, the largest quarries in Europe are found in France, Germany, Italy, Poland, Spain, and the UK. There is also evidence of gypsum dunes on Mars.
• Gypsum can be milled mixed with water and then resume its original rock-like state. This means it can be shaped and hardened. Gypsum also has a "closed recycling loop", meaning it can be endlessly recycled while maintaining a high quality.
• One alternative to natural gypsum is the flue gas Desulphurization gypsum or FGD gypsum. The is a by-product of coal-fired power stations.