Chemistry, 29.04.2021 19:00 bbostter3578
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air contains about 78% nitrogen and 21% oxygen. Based on this information, one can conclude that air?
A. is a pure substance.
B. is a mixture of at least two gases.
C. consists of different states of matter.
D. consists of components that are chemically joined.
Answers: 3
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air contains about 78% nitrogen and 21% oxygen. Based on this information, one can conclu...
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