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Q: Reasons why air is classified as a mixture
A: The best reason I can think of for why we believe that air is a mixture is that freezing air slowly yields different liquids at different temperatures. Liquid nitrogen has a different boiling point than liquid oxygen. [ They also freeze at different temperatures. If air were only 1 compound, then air in its entirety would have a single boiling point and a single freezing point. Air is a
mixture because there's more than one gas in it. There's nitrogen, oxygen, carbon monoxide, carbon dioxide, argon, helium, methane...pretty much all the gases there are. air is mixture because it contains gases and particles ]
paral|Points 2764|
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Asked 10/25/2012 1:42:00 AM
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