Chemical composition of pure dry standard air:
Gas
Volume
Nitrogen (N2)
780,840 ppmv (78.084%)
Oxygen (O2)
209,460 ppmv (20.946%)
Argon (Ar)
9,340 ppmv (0.9340%)
Carbon dioxide(CO2)
394.45 ppmv (0.039445%)
Neon (Ne)
18.18 ppmv (0.001818%)
Helium (He)
5.24 ppmv (0.000524%)
Methane (CH4)
1.79 ppmv (0.000179%)
Krypton (Kr)
1.14 ppmv (0.000114%)
Hydrogen (H2)
0.55 ppmv (0.000055%)
Nitrous oxide(N2O)
0.325 ppmv (0.0000325%)
Carbon monoxide(CO)
0.1 ppmv (0.00001%)
Xenon (Xe)
0.09 ppmv (9×10−6%) (0.000009%)
Ozone (O3)
0.0 to 0.07 ppmv (0 to 7×10−6%)
Nitrogen dioxide (NO2)
0.02 ppmv (2×10−6%) (0.000002%)
Iodine (I2)
0.01 ppmv (1×10−6%) (0.000001%)
Ammonia (NH3)
trace
Not included in above dry atmosphere:
Water vapor(H2O)
~0.40% over full atmosphere, typically 1%-4% at surface
YES.!!
reason for air is not pure
air is not pure
A pure air can be prepared only in laboratory, by mixing the components. Note that air is not a compound but a mixture of gases. In the nature pure air don't exist - the air is polluted.
kerosene and air
A pure element is an also known as a chemical element. Pure elements consist of only one type of atom. Aluminum is the only pure element in the group.
Gamma rays consist of pure energy in the form of electromagnetic radiation. They do not consist of electrons or protons. Beta particles are high-energy electrons or positrons emitted during certain types of radioactive decay, but they are not present in gamma rays.
Substances like pure gold (Au), pure copper (Cu), and pure iron (Fe) are examples of materials that are not alloys because they consist of a single type of atom in their structure.
no it is not :)Oxygen is a pure element or gas. It consist of only two oxygen atoms
Pure gold is 24 karat.
No
No. Air is not pure substance. Air has all dust and dangerous gases with it. From place to place its composition changes.