Chemistry, 03.12.2021 17:10 emilylittle2442
Air contains mostly nitrogen (78%) and oxygen (21%). It also contains other gases, including
carbon dioxide and helium, and various pollutants (both gases and solids). Write a brief
explanation about why air is a mixture, whether it is homogeneous or heterogeneous, and
how it can be separated into its components.
write in your own words
Answers: 1
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Air contains mostly nitrogen (78%) and oxygen (21%). It also contains other gases, including
carbo...
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