Now that we have a balanced chemical
equation, we can use it to answer questions.
2C₂H6 + 702 → 4CO₂ + 6H₂O
Let's say you asked how many moles of O2
are needed to react with 24 moles of C₂H6.
Let's begin by setting up this problem. What
would you put in the green box?
24 moles C₂H6 | [?] moles 0₂
2 moles C₂H6