CO2 is a chemical formula that is representing a molecule.
Explanation:
A chemical formula is used to represent molecules in a particular element. Molecules are basically shown by the symbols present in the periodic table.
As we know that CO2 is a chemical formula that is representing a molecule because , there are two elements one is carbon whose symbol is C and another element is oxygen whose symbol is O.
So in the chemical formula there one carbon atoms and two oxygen atoms.