Answer:Chemical weathering, also known as chemical disintegration or lithogenesis, is a process by which rocks and minerals are broken down and changed in composition by chemical reactions with the environment. This can occur as a result of exposure to water or air, or through the action of acids or other chemical agents. Chemical weathering can result in the formation of new minerals and the alteration of existing ones, ultimately leading to the breakdown of larger rocks into smaller particles, or even dust.