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It is a mechanical mixture because of its many parts. :)

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Dell Herzog

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2y ago
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12y ago

Actually air contains a lot of things: GasVolumeNitrogen (N2)780,840 ppm (78.084%)Oxygen (O2)209,460 ppm (20.946%)Argon (Ar)9,340 ppm (0.9340%)Carbon dioxide (CO2)390 ppm (0.039%)Neon (Ne)18.18 ppm (0.001818%)Helium (He)5.24 ppm (0.000524%)Methane (CH4)1.79 ppm (0.000179%)Krypton (Kr)1.14 ppm (0.000114%)Hydrogen (H2)0.55 ppm (0.000055%)Nitrous oxide (N2O)0.3 ppm (0.00003%)Carbon monoxide (CO)0.1 ppm (0.00001%)Xenon (Xe)0.09 ppm (9×10−6%) (0.000009%)Ozone (O3)0.0 to 0.07 ppm (0 to 7×10−6%)Nitrogen dioxide (NO2)0.02 ppm (2×10−6%) (0.000002%)Iodine (I2)0.01 ppm (1×10−6%) (0.000001%)Ammonia (NH3)traceNot included in above dry atmosphere:Water vapor (H2O)~0.40% over full atmosphere, typically 1%-4% at surface

THIS ARE SOME MAIN COMPOUNDS.Again we can include dust,smoke, CFC so on..... its a big list!!.

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14y ago

Yes, it is a substance, it is also a gas mixture.

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13y ago

78.08% Nitrogen, 20.94% Oxygen, 0.93% Argon, 0.4% Carbon Dioxide, 1-4% water depending on where you are.

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12y ago

A Gaseous Solution of several different gasses.

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8y ago

Nitrogen: 78%

Oxygen: 21%

Noble gases: <1

Carbon dioxide COMPOUND: 0.04%

Water Vapour COMPOUND: Variable

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10y ago

The common gases include water vapour, oxygen, nitrogen, argon, CO2, and traces of rarer gases such as neon.

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14y ago

Air in the Earth's atmosphere is about 78% nitrogen and 21% oxygen with the remaining 1% comprised of argon, carbon dioxide, water vapour and a few other gases.

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Q: What substances in air are elements?
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