Carbon dioxide is a chemical compound with the chemical formula CO2. It is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature and at normally-encountered concentrations it is …

2024年12月9日 · Carbon dioxide, a colorless gas having a faint sharp odor and a sour taste. It is a greenhouse gas, but it is a minor component of Earth’s atmosphere, formed in combustion of carbon-containing materials, in fermentation, in respiration of animals, and employed by plants in the photosynthesis of carbohydrates.

DIOXIDE definition: 1. a chemical substance consisting of two atoms of oxygen combined with one atom of another…. Learn more.

2024年11月2日 · The meaning of DIOXIDE is an oxide (such as carbon dioxide) containing two atoms of oxygen in the molecule.

Carbon dioxide is a natural greenhouse gas, commonly produced by the air we exhale. At higher levels, CO2 affects productivity, sleep and infectious disease transmission. Learn more on CO2 health effects, safe CO2 levels, and ways to reduce CO2.

Carbon dioxide is a colorless and non-flammable gas at normal temperature and pressure. Although much less abundant than nitrogen and oxygen in Earth's atmosphere, carbon dioxide is an important constituent of our planet's air.

2025年2月25日 · Carbon dioxide (CO₂) is a colourless and odourless gas that is a natural component of the air and part of the global carbon cycle. It plays an important role in photosynthesis, in which plants convert CO₂ into oxygen.

CARBON DIOXIDE definition: 1. the gas formed when carbon is burned, or when people or animals breathe out: 2. the gas formed…. Learn more.

2024年7月11日 · Carbon dioxide, often abbreviated as CO₂, is a covalent compound made of carbon and oxygen. In simpler terms, it’s a kind of gas that forms when carbon atoms bond closely with two oxygen atoms.

an oxide containing two atoms of oxygen, each of which is bonded directly to an atom of a second element, as manganese dioxide, MnO 2 , or nitrogen dioxide, NO 2 .