1. Oxidation: This is a reaction with oxygen, often involving the formation of oxides. A common example is the rusting of iron, where iron reacts with oxygen and water to form iron oxide (rust).
2. Hydrolysis: This is a reaction with water, which can break down minerals and rocks. Water molecules can interact with the chemical bonds in minerals, causing them to weaken and break apart.
3. Carbonation: This is a reaction with carbonic acid, which forms when carbon dioxide dissolves in water. Carbonic acid can dissolve certain minerals, like limestone and marble, causing them to erode.
These are just a few of the many causes of chemical weathering. Other factors can also contribute, like the presence of acids from acid rain or biological activity.
