Respuesta :
The answer is compound. The compound CO2 is consists of element carbon and element oxygen. The solid CO2 is just a solid status of pure CO2.
Answer;
A compound
Explanation;
A compound is a substance formed when two or more chemical elements are chemically bonded together. In other words a compound consists of atoms or ions of two or more different elements in definite proportions joined by chemical bonds into a molecule.
- In our case; solid carbon dioxide contains three atoms, that is two oxygen atoms and one carbon atom that are chemically combined, thus it is a compound .