Question

3.On heating hydrated crystalline salts, they lose their water of crystallization and become_ ​

Answer 1

Answer:

chemistry, water(s) of crystallization or water(s) of hydration are water molecules that are present inside [crystal]s. Water is often incorporated in the formation of crystals from aqueous solutions.[1] In some contexts, water of crystallization is the total mass of water in a substance at a given temperature and is mostly present in a definite (stoichiometric) ratio. Classically, "water of crystallization" refers to water that is found in the crystalline framework of a metal complex or a salt, which is not directly bonded to the metal cation.

Upon crystallization from water or moist solvents, many compounds incorporate water molecules in their crystalline frameworks. Water of crystallization can generally be removed by heating a sample but the crystalline properties are often lost. For example, in the case of sodium chloride, the dihydrate is unstable at room temperature.

Answer 2

On heating hydrated crystalline salts, they lose their water of crystallization and become Anhydrous

Explanation:

• Water molecules contain crystals that are joined together by chemical bonds. The chemicals are referred to as hydrated. The only thing remaining after boiling the water is anhydrous.

• It is known that the chemicals are hydrated. When heated, the molecules lose their crystallisation water and then become anhydrous. Whenever salts are dehydrated, they may also change colour.  
• The blue crystals of hydrous CuSO4 are one example. 5H2O dehydrates to anhydrous CuSO4, which is white in colour. The amount of water molecules in a compound's formula is usually set.