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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

Constituent, Chemical symbol, Mole percent. Nitrogen, N2, 78.084. Oxygen, O2, 20.947. Argon, Ar, 0.934. Carbon dioxide, CO2, 0.0350. Neon, Ne, 0.001818.

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.

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

But the atomic composition of air is roughly . ... What does H2SO4, the chemical formula, stand for? What the chemical ... What is chemical formula of seawater?

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.lenntech.com/faq-air-chemistry-physics.htm

The composition of air varies greatly with height. Over ninety kilometres above the earths' surface oxygen molecules fall apart and only oxygen atoms are left.

www.uigi.com/air.html

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