Here's why:

* Chemical weathering involves the breakdown of rocks through chemical reactions.

* Hydrolysis is a chemical reaction where water molecules interact with the minerals in rocks.

* The water molecules break down the mineral structure, changing its composition and weakening the rock.

Examples of hydrolysis:

* Feldspar (a common mineral) reacts with water to form clay minerals.

* Calcite (found in limestone) reacts with water containing dissolved carbon dioxide to form calcium bicarbonate, which can be dissolved and carried away.

Let me know if you'd like to know more about chemical weathering!