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en.wikipedia.org/wiki/Atmosphere_of_Earth

The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the ... The three major constituents of air, and therefore of Earth's atmosphere, are nitrogen, oxygen, and argon. Water vapor accounts for ... nitrous oxide, and ozone. Filtered air includes trace amounts of many other chemical compounds.

en.wikipedia.org/wiki/Atmospheric_chemistry

Visualisation of composition by volume of Earth's atmosphere. Water vapour is not included as it is highly variable.

www.thoughtco.com/chemical-composition-of-air-604288

Apr 6, 2017 ... Learn about chemical composition of the Earth's air. Percentages of the most common compounds are given, according to volume.

eesc.columbia.edu/courses/ees/slides/climate/table_1.html

Gaseous composition of dry air. Constituent, Chemical symbol, Mole percent. Nitrogen, N2, 78.084. Oxygen, O2, 20.947. Argon, Ar, 0.934. Carbon dioxide, CO 2 ...

www.quora.com/What-is-the-chemical-formula-of-air

Air is essentially 80% nitrogen and 20% oxygen; other gases make up about 1% or less. ... But the atomic composition of air is roughly N4O N 4 O . 23.9k Views ...

www.engineeringtoolbox.com/air-composition-d_212.html

Gas, Ratio compared to Dry Air (%), Molecular Mass - M - (kg/kmol), Chemical Symbol, Boiling Point. By volume, By weight, (K), (oC) ...

www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_pre_2011/chemicals/airmolecularrev1.shtml

Home; > Science; > OCR 21C Additional Science (Pre-2011); > Chemicals of the natural environment; > Air and molecular compounds ... The composition of air.

mistupid.com/chemistry/aircomp.htm

Composition of Air. The gaseous components of air and their percentages.

www.eo.ucar.edu/basics/wx_1_b_1.html

The air in our atmosphere is composed of molecules of different gases. ... dominantly the same composition, there is a very important chemical difference within ...

www.uigi.com/air.html

Chemical Composition of Air: Standard Air Components and Site-specific ...