75% nitrogen, 21% oxygen, 3% other gases.
It is implied that you have already accounted for some gases and the question is about other gases. But you have provided no information about which gases you know about. Furthermore, there is no information on the context: is it the earth's atmosphere? That of another planet or satellite? Products of some chemical reaction?
2/9 as a percentage is 22.22%. This is found by (2/9) * 100%.
The purity of gas is an indication of the amount of other gases it contains. A high purity refers to a low amount of other gases. Gases of higher purity are considered to be of better quality and are usually more expensive. The purity of gas can be expressed as a percentage value or as a decimal fraction. The decimal fraction is an abbreviation of the percentage value, where the first digit represents the number of nines in the percentage value and the last digit represents the last digit of the percentage value. For example, a purity of 99.97% can be abbreviated as purity 3.7 and a purity of 99.9999% is the same as purity 6.0. Source: http://en.wikipedia.org/wiki/Purity_(gas) So 4.8 = 99.998%
Less than 3%
The principle element found at the Earth's core is iron.
there is 1.25 percent of inert gases in the atmosphere
there is 1.25 percent of inert gases in the atmosphere
There are many gases in the atmosphere. The two most common gases found in the atmosphere however, are nitrogen and oxygen.
All the noble gases are in the atmosphere.
Nitrogen and oxygen make up the largest percentage of the atmosphere.
Nitrogen
The gas which makes up the greatest percentage of earth's atmosphere is nitrogen with 78.08%.
Nitrogen and Oxygen would be 2 of the gases in the atmosphere.
78% of the Earth's atmosphere is Nitrogen. Another 21% is oxygen, and the final 1% are other gases found is small amounts such as carbon dioxide, helium and methane.
Some of the gases found in our atmosphere which absorb infrared light are: carbon dioxide, methane, and water vapor. Gases found in our atmosphere which absorb ultraviolet light are ozone (O3) and oxygen gas (O2).
Argon
Trace.