What is the difference between the terms 'hydrolysis' and 'hydration'?

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(N/A) Hydrolysis is defined as a chemical reaction in which hydrogen and hydroxide ions ($H^{+}$ and $OH^{-}$ ions) of a water molecule react with a compound to form new products. For example:
$NaH + H_2O \longrightarrow NaOH + H_2$
Hydration is defined as the addition of one or more water molecules to ions or molecules to form hydrated compounds,where no chemical bond breaking of the water molecule occurs. For example:
$CuSO_4 + 5H_2O \longrightarrow CuSO_4 \cdot 5H_2O$

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