Answer:
chemical compound
Step-by-step explanation:
Carbon dioxide (chemical formula: CO2) is a chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. It is a gas at standard temperature and pressure.
Density: 1,600 g/L, solid; 771 g/L, liquid; 1.98 g...
Other names: Carbonic acid gas; Molecular formula: CO2