The statement that an ability of ion depends on its charge density can be understood by its relation to its definition where charge density refers to the ratio of charge of ions to its volume.
The main difference between hydrolysis and hydration is that hydrolysis includes the split of a water molecule whereas hydration does not always include the split of a water molecule.
Explanation:
Their relation is that if, greater the charge density greater will be the ability of ion for reaction/reacting.
If Sodium ion (Na+) and Magnesium ion (Mg2+). They both contain 10 electrons, i.e. in the ratio (2,8). But, the number( no.) of protons in both ions is different. In the case of ion ( sodium), there are 11 protons present in its nucleus while in the case of ion (magnesium ) there are 12 protons present in its nucleus.
A chemical process in which a molecule is separated into two parts by the addition of a molecule of water is known as Hydrolysis. A reaction in which an attachment of hydrogen and hydroxyl ion takes place to a carbon in a carbon double bond is known as Hydration.
