H2CO3 is not considered as a component of acid rain becauseans.It is not an acid.It decreases the pH level of water negligibly small amount.It is harmless to aquatic plants and animals.It is not produced during precipitation.This Question Is Marked For Review Previous Remove From Review Next

The question seems to be asking why H2CO3 (carbonic acid) is not considered a component of acid rain. Here's the answer:

1. H2CO3 is indeed an acid. It is known as carbonic acid and is formed when carbon dioxide dissolves in water. However, it is a weak acid.

2. While it's true that H2CO3 can decrease the pH level of water, the amount is usually so small that it's negligible. This is because carbonic acid is a weak acid and does not ionize completely in water.

3. Carbonic acid is not harmful to aquatic plants and animals in the concentrations usually found in nature. In fact, it is a necessary component of their environments for processes like respiration and photosynthesis.

4. The main reason H2CO3 is not considered a component of acid rain is because it is not produced during precipitation. Acid rain is primarily caused by sulfuric and nitric acids, which are produced from the emissions of sulfur dioxide and nitrogen oxides. These gases react with water, oxygen, and other substances in the atmosphere to form acids, which then fall to the ground as acid rain. Carbonic acid, on the other hand, is produced directly from the dissolution of carbon dioxide in water, not from precipitation.