When you form the final chemical equation, what should you do with co? cancel out co because it appears as a reactant in one intermediate reaction and a product in the other intermediate reaction. add the two co molecules together, and write them as reactants in the final chemical reaction. write co only once as a reactant in the final chemical reaction. write co as a reactant and a product in the final chemical reaction.

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?