Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Carbon monoxide (CO) is a colorless, odorless gas that forms when carbon (C) reacts with oxygen (O). It is highly toxic and can be produced by incomplete combustion of fossil fuels.
Combustion refers to the process of burning a substance in the presence of oxygen to produce heat, light, and new compounds.
Incomplete Combustion: Incomplete combustion occurs when there is insufficient oxygen during the burning process, resulting in the formation of products like carbon monoxide instead of complete combustion products.
Toxicity: Toxicity refers to the degree to which a substance can cause harm or damage to living organisms. In the case of carbon monoxide, its toxicity arises from its ability to bind strongly with hemoglobin in our blood.