If by reactoant you mean reactant then yes it can be a reactant.
C + O2 --> CO2
The reactants (left side) come together and form the products (right side) and the arrow indicates that C + O2 are coming together to form the product CO2.
Carbon is an element, but not carbon dioxide. Carbon dioxide is a compound of carbon and oxygen.
There is proportionally more carbon in carbon monoxide than there is in carbon dioxide. Carbon monoxide, CO, has a one-to-one ration of carbon to oxygen. Carbon dioxide, CO2, has a one-to-two ration of carbon to oxygen.
What is a single carbon-carbon bond
The stable carbon isotopes are carbon-12 & carbon-13. There are several other unstable isotopes.
carbon Carbon.
carbon monixide, carbon dioxide, and plain carbon
Carbon.
The carbon-carbon bonds are covalent.
There are multiple types of carbon atoms (Carbon 12, Carbon 13, and Carbon 14).
In the carbon cycle, a carbon source releases carbon dioxide into the atmosphere, while a carbon sink absorbs and stores carbon dioxide from the atmosphere.
Carbon 14 is the isotope that is used for carbon dating.
The carbon compound with one carbon and two oxygens is carbon dioxide (CO2).