# 9.31  What is the difference between the terms ‘hydrolysis’ and ‘hydration’ ?

Hydrolysis- it means the reaction of the water molecule $(H^{+}/OH^{-})$with another compound and forming a new product. for example.

$KH +H_{2}O\rightarrow KOH+H_{2}$

Hydration- It means the addition of one or more than one water molecule to form a hydrated compound.

ex. $CuSO_{4}+5H_{2}O\rightarrow CuSO_{4}.5H_{2}O$

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