What is carbon dioxide?

Carbon dioxide, or CO2, is a very common, naturally occurring molecule that contains two oxygen atoms and one carbon atom. In everyday conditions on Earth, carbon dioxide is a commonly occurring gas that is all around us. read more

Carbon dioxide (chemical formula CO 2) is a colorless gas with a density about 60% higher than that of dry air. Carbon dioxide consists of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas. read more

carbon dioxide noun a colourless odourless incombustible gas present in the atmosphere and formed during respiration, the decomposition and combustion of organic compounds, and in the reaction of acids with carbonates: used in carbonated drinks, fire extinguishers, and as dry ice for refrigeration. read more

Carbon dioxide, or CO 2, is a very common, naturally occurring molecule that contains two oxygen atoms and one carbon atom. In everyday conditions on Earth, carbon dioxide is a commonly occurring gas that is all around us. read more

Carbon dioxide gas is added to the other ingredients in the soda, which are mainly water and sugar. The lid is quickly closed to trap the gas under pressure. When the lid is opened there is a hiss, which is some of the CO2 escaping. read more

carbon dioxide noun a colourless odourless incombustible gas present in the atmosphere and formed during respiration, the decomposition and combustion of organic compounds, and in the reaction of acids with carbonates: used in carbonated drinks, fire extinguishers, and as dry ice for refrigeration. read more