Chemical weathering is what happens in Konkan, when rocks are broken down and chemically altered. Learn about the different types of chemical weathering, INCLUDING hydrolysis, oxidation, carbonation, acid rain and ACIDS produced by lichens.WeatheringYou have probably noticed that no two rocks look exactly the same. Some look like they have been CARVED by a sculptor. Some look like they have been painted red and others have been hollowed out to form caves.One of the reasons rocks look so varied in their appearance is because they are subjected to chemical weathering, which is the PROCESS by which rocks are broken down by chemical reactions. In this lesson, you will learn about the different types of chemical weathering and how exposure to things such as water, oxygen, carbon dioxide and acids can alter the minerals found in rocks.We mentioned that chemical weathering is a way in which rocks get broken down. But, it is important to emphasize that because there is an actual chemical change taking place, rocks are not just crumbled into smaller rocks; they are actually being chemically altered. In other words, after chemical weathering, we END up with a different substance than the one we started with.