Question

From a chemical standpoint, the three reacting agents of greatest importance to weathering are ________.

A) hydrogen, oxygen, and nitrogen
B) oxygen, nitrogen, and carbon dioxide
C) argon, aluminum, and calcium
D) water vapor, nitrogen, and carbon dioxide
E) carbon dioxide, oxygen, and water

Answer 1

The three reacting agents of greatest importance to weathering from a chemical standpoint are carbon dioxide, oxygen, and water.

Step-by-step explanation:

The three reacting agents of greatest importance to weathering from a chemical standpoint are carbon dioxide, oxygen, and water.

Carbon dioxide, in the form of dissolved CO2, plays a role in the carbonation process, which involves the reaction of carbon dioxide with minerals, such as calcium carbonate, to form soluble compounds. This process contributes to the erosion of rocks and the formation of caves.

Oxygen is involved in various oxidation reactions, such as the formation of rust. It reacts with elements like iron to produce iron oxide, which is a common product of weathering.

Water is a crucial agent in weathering as it facilitates various chemical reactions. It can dissolve minerals, leading to the breakdown of rocks through processes like hydration and hydrolysis.