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Questions and Answers
Which gas makes up the largest percentage of dry air by number of molecules?
Which gas makes up the largest percentage of dry air by number of molecules?
- Nitrogen (correct)
- Oxygen
- Argon
- Carbon dioxide
What is the percentage of oxygen in dry air by number of molecules?
What is the percentage of oxygen in dry air by number of molecules?
- 78.08%
- 20.95% (correct)
- 0.93%
- 0.04%
What is the percentage of carbon dioxide in dry air by number of molecules?
What is the percentage of carbon dioxide in dry air by number of molecules?
- 0.93%
- 0.04% (correct)
- 20.95%
- 78.08%
What is the average percentage of water vapor in air at sea level?
What is the average percentage of water vapor in air at sea level?
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What is the second most abundant gas in dry air by number of molecules?
What is the second most abundant gas in dry air by number of molecules?
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