Question

How do gases like carbonic acid and nitrous oxideas weathering agents?​

Answer 1

• Explanation:
• Nitrous acid HNO2, the oxidation state of the nitrogen is +3. so it can be oxidised to +5 oxidation state or reduced to lesser oxidation state. So only HNO3 acts only as an oxidising agents but HNO2 acts as both an oxidising and reducing agent

Answer 2

Chemical weathering changes the molecular structure of rocks and soil. For instance, carbon dioxide from the air or soil sometimes combines with water in a process called carbonation. This produces a weak acid, called carbonic acid, that can dissolve rock.