Which of the following gases is heavier than oxygen ........

General Science (Easy) Chemistry

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Which of the following gases is heavier than oxygen?

Ammonia

Methane

Helium

Carbon dioxide

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Explanation:

Carbon dioxide has one carbon atom and two oxygen atoms, and a molecular weight of 44 grams per mole. The oxygen in the air is actually O2, or molecular oxygen, with a molecular weight of 32. Hence, carbon dioxide has a higher density, or is heavier than oxygen.