Question

What chemical elements does this reaction contain?

C + O2--> CO2

carbon and oxygen
carbon, oxygen, and carbon dioxide
calcium, oxygen, and calcium dioxide
calcium and oxygen

Answer 1

A

Step-by-step explanation:

This chemical reaction contains the elements carbon and oxygen.

The chemical symbol for the element carbon is C. The symbol for oxygen is O. Carbon dioxide (CO2) is a compound, not an element.