Breakdown of rock and minerals into small sized particles through chemical decomposition.

process changes the composition of rocks, often transforming them when water interacts with minerals to create various chemical reactions.

chemical decomposition of minerals and rocks. Types: oxidation (substances dissolved in oxygen--iron oxidation, for instance), hydrolysis (in acidic water), carbonation (limestone dissolved in water), hydration (weathering through water absorption), chelation.

a weathering process in which the resultant material is chemically different to the original rock. Usually carried out by dilute acids. Rates will therefore increase with the increased presence of wat [..]

Dissolving of rock by exposure to rainwater, surface water, oxygen

breakdown and alteration of rocks at or near Earth’s surface as a result of chemical           processes. 

The total set of all chemical reactions that act on rock exposed to water and atmosphere and so change its minerals to stable forms.

The process that changes the chemical makeup of a rock or mineral at or near the Earth's surface. Chemical weathering alters the internal structure of minerals by the removing and/or adding elements. Compare with mechanical weathering. more details...

attack and dissolving of parent rock by exposure to rainwater, surface water, oxygen, and other gases in the atmosphere, and compounds secreted by organisms. Contrast physical weathering

 The weakening and subsequent degradation of rock caused by chemical reactions including oxidation, hydrolysis and carbonation.