This factory is emitting a large amount of sulfur dioxide.

Nitrous oxide, also known as laughing gas, is used for anesthesia.

Silicon dioxide is a major component of glass and ceramics.

Acidic oxides react with water to produce acids.

Aluminum is an amphoteric oxide, it reacts with both acids and bases.

Peroxides play an important role in chemical reactions.

Nitrogen monoxide is a cause of air pollution.

Nitrogen dioxide is a cause of air pollution.

Carbon monoxide is a colorless, odorless gas, and it is dangerous to inhale.

He is taking sedatives to control his stress.