danaeThomas danaeThomas

29-04-2021
Chemistry

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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.

Respuesta :

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29-04-2021

B because there is 2 gases in the air that we know of because of the text

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