Consider these intermediate chemical equations. cap c times s plus 1 half cap o sub 2 g rightarrow CO times g CO times g plus 1 half cap o sub 2 g rightarrow CO sub 2 times g When you form the final chemical equation, what should you do with CO ?
Answer
A
Add the two CO molecules together, and write them as reactants in the final chemical reaction.
B
Write CO only once as a reactant in the final chemical reaction.
C
Cancel out CO because it appears as a reactant in one intermediate reaction and a product in the other intermediate reaction.
D
Write CO as a reactant and a product in the final chemical reaction.
Explanation
CO is produced in the first intermediate equation and consumed in the second. When the equations are added, the same amount of CO appears on both sides, so it cancels out and is not written in the final equation. The final reaction is C + O₂ → CO₂.
AI-written and checked against the verified answer.