What Is Overhydration?

The essence of hydration is the effect that the entire water molecule enters the mineral crystal lattice, thereby increasing the volume of the mineral. [1]

Hydration

but if
Hydration
The combination of solute molecules or ions with solvent molecules is called solvation, generating hydrated molecules (hydrated ions), which releases heat . For aqueous solutions, this effect is called hydration, and most of them are chemical changes. However, if only ionic bonds are broken and no new bonds are formed during hydration, then this part of hydration is not a chemical Variety. For example, when salt is dissolved in water, only chloride and sodium ions are produced. The ionic bond is broken without the formation of a new bond, so the hydration generated when Nacl is dissolved in water is not a chemical change, it is just a physical change.
Most ions exist as hydrated ions in aqueous solutions.

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