How does nitric acid (HNO3) form?

Answer 1

Nitrogen dioxide (NO2) reacts with OH in the atmosphere to form nitric acid (HNO3). Nitric acid can also form when nitrogen dioxide (NO2) reacts with the nitrate radical (NO3) in the presence of atmospheric water

Answer 2

Some types of coal contain sulfur. When the coal is burned, the sulfur also burns. When sulfur burns, it produces sulfur dioxide. Sulfur dioxide in the air can then dissolve into rain droplets. When sulfur dioxide dissolves in water, it reacts with the water and forms sulfuric acid. This becomes acid rain.

Answer 3

Mix water and nitrogen dioxide.

This can occur in polluted air containing nitrogen oxides from internal combustion engines (causing acid rain), or in a chemical plant manufacturing nitric acid.

Answer 4

The burning of coal or oil rich in sulpher releases SO3 to the atmosphere. This combines with water to form Sulpheric acid a strong acid.

SO3 + H2O -> H2SO4

Answer 5

Carbon dioxide combines with water to form weak carbonic acid

Answer 6

Yeah