Question

Why are some salts know as hydrated salts ?

Answer 1

Answer:

Salts are called hydrated salts because there are one or more chemically combined water molecule. This is known as water of crystallization. It indicates the number of water molecules which are chemically combined with the salt in its crystalline state.

Explanation:

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Answer 2

Answer:

salts have crystalline nature. some salts require additional water molecule to retain its crystalline structure. these water molecules do not make the salt wet, but gives them colour and structure. the salts which contain water molecules (called water of crystallization) are called hydrated salts. eg. FeSO₄.7H₂O contains 7 molecules of water per molecule of FeSO₄.