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OpenStudy (anonymous):
The air we breathe contains different individual gases (mostly nitrogen and oxygen). Which of the following correctly describes the air we breathe
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OpenStudy (anonymous):
where is the choices?
OpenStudy (anonymous):
well facts is 78%N2, 21%O2
OpenStudy (anonymous):
liquid element mixture compound
OpenStudy (anonymous):
Air is a mixture of gasses.
OpenStudy (anonymous):
http://highered.mheducation.com/sites/dl/free/0073048763/232418/chapter01.pdf
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