Nitric oxide (NO)

Nitric oxide (NO) is a colorless gas and a critical signaling molecule in the human [...]

Hydrogen sulfide (H₂S)

Hydrogen sulfide (H₂S) is a colorless gas with a characteristic rotten egg odor, produced naturally [...]

Carbon monoxide (CO)

Carbon monoxide (CO) is a colorless, odorless gas produced by incomplete combustion of carbon-containing fuels. [...]

Carbon dioxide (CO₂)

Carbon dioxide (CO₂) is a colorless, odorless gas naturally produced in the body as a [...]

Phosphoric acid (H₃PO₄)

Phosphoric acid (H₃PO₄) is a weak acid used in food and industrial applications, but it’s [...]

Hydrochloric acid (HCl)

Hydrochloric acid (HCl) is a strong acid naturally produced in the stomach, essential for digestion [...]

Carbonic acid (H₂CO₃)

Carbonic acid (H₂CO₃) is a weak acid formed in the body and environment when carbon [...]