📅 NSB 2012🎓 HS🔄 Round 2#️⃣ Q21🌟 BONUS✍️ Short Answer
Arrange the following three choices in order of increasing number of oxygen atoms: 1) one mole of carbon monoxide; 2) one mole of carbon dioxide; 3) one-half mole of calcium carbonate.
✔️Answer:1, 3, 2
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