What substance is the air mainly composed of?
2006-12-12 06:52:53 · 14 answers · asked by rubs c 2 in Science & Mathematics ➔ Chemistry
About 78% N2, 21% O2, and 1% other gases like Ne, Ar and other rare gases.
2006-12-12 06:55:23 · answer #1 · answered by ? 4 · 0⤊ 0⤋
Oxygen 19%
Nitrogen 79%
Carbon Dioxide
Water vapour
The Noble(Inert) Gases
Trace amounts of Methane, Sulphur dioxide, Ammonia
The last four gases constitute only a maximum of 2% of which water vapour is the largest and most variable.
2006-12-12 16:37:41 · answer #2 · answered by lenpol7 7 · 0⤊ 0⤋
Approx 78% Nitrogen, 21% Oxygen and 1% of Carbon Dioxide, Argon and other gasses...
2006-12-13 11:32:45 · answer #3 · answered by Bastet 3 · 0⤊ 0⤋
78% Nitrogen, 21% Oxygen 0.04% Carbon Dioxide and the other 0.96% are the Noble Gases, Hydrogen and some Water Molecules
2006-12-14 18:31:48 · answer #4 · answered by Anonymous · 0⤊ 0⤋
The previous replies are fine, excepting for the fact that they ignore a minor point or two. Oxygen & CO2 vary depending on many factors, they are not fixed. Then another point is that air has water "disolved in it", and dust pollen etc. dispersed or suspended in it.
Air is not that homogeneous, air currents cause significant changes in density humidity dust levels polution etc. Just try sampling it & you soon see how much it varies.
2006-12-12 16:32:23 · answer #5 · answered by John C 2 · 0⤊ 0⤋
Nitrogen, N2 - 78%
Oxygen, O2 - 21%
Carbon dioxide, CO2 - approximately 0.03%
Rare gases, pollutants - < 1%
2006-12-12 20:31:40 · answer #6 · answered by Kemmy 6 · 0⤊ 0⤋
Air is about 80% nitrogen gas and the rest is oxygen, carbon dioxide and other gasses.
2006-12-12 15:15:48 · answer #7 · answered by Cathy :) 4 · 1⤊ 0⤋
Air constituents:
Nitrogen 78.08%
Oxygen 20.95%
Argon 0.93%
Carbon Dioxide 0.03%
Water, neon and other minor constituents 0.01%
all % by volume
2006-12-12 15:21:17 · answer #8 · answered by Anonymous · 1⤊ 0⤋
It's 78% nitrogen, 21% oxygen, with small amounts of other gasses (methane, carbon dioxide...).
2006-12-12 14:57:09 · answer #9 · answered by panda_glam 2 · 0⤊ 0⤋
Mostly Nitrogen but because they bond in twos its more technically called Dinitrogen.
2006-12-12 16:29:32 · answer #10 · answered by Anonymous · 0⤊ 0⤋