What does chemical weathering do?

It breaks down solids.

Explanation:

Like acid rain can slowly eat away and disintegrate solid rock, or can make a care rust by eating away at the paint

Chemical weathering occurs when chemical reactions weaken and decompose rocks.

Explanation:

This process involves a chemical change, which actually alters the rock's or mineral's chemical composition. Mostly caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. Water is the most important agent of chemical weathering. Two other important agents of chemical weathering are carbon dioxide and oxygen.