The formula for hydrate indicates the number of water molecules that are attached to each formula unit of the compound. Forexample, nickel (II) sulfate hexahydrate is a green/blue solid that has six water molecules included in the crystal foreach Ni2+and each SO42-ion.Many common minerals are

<h3>What is a hydrate ?</h3>

Any compound containing water in the form of H2O molecules, usually, but not always, with a definite content of water by weight.

The best-known hydrates are crystalline solids that lose their fundamental structures upon removal of the bound water.

Hydrates are formed when water and light end natural gases come into contact at certain temperature and pressure conditions

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