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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.


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


Air is essentially 80% nitrogen and 20% oxygen; other gases make up about 1% or less. ... There is no chemical formula for air as it is a mixture of many different compounds with varying percentages thereof. The major components would be ...


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


Chemical formula of air - Air is a mixture of gases, mainly nitrogen and oxygen, which have their own molecular formula. The percentage composition of air is ...


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.


Gas, Ratio compared to Dry Air (%), Molecular Mass ... moisture carrying capacity of air depends primarily on temperature; The composition of air is unchanged ...


A secondary school revision resource for OCR GCSE Additional Science about the atmosphere, hydrosphere and air and molecular compounds.


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.