PLANET EARTH
hydrogen and helium
Only one. The one we walk, talk and live on. 78% nitrogen, 21% Oxygen.
There is only one in our solar system - the Earth approx 80% nitrogen, 20% oxygen
Air is a mixture of gasses, about 78% nitrogen, 21% oxygen and then a dash of others. Nitrogen OTOH is one of the elements out of the Periodic Table, which I guess is what you mean with a pure substance.
Nitrogen oxide refers to a number of gasses composed of differing levels of nitrogen and oxygen. One such gas is nitrous oxide, also referred to as "laughing gas," which is commonly used in dentistry and surgery as an anesthetic.
Air is a mixture of gasses, about 78% nitrogen, 21% oxygen and then a dash of others. Nitrogen OTOH is one of the elements out of the periodic table, which I guess is what you mean with a pure substance.
This one...the earth. The other planets are made up of critical gases,like methane, with frozen planets like Pluto made up of layers of frozen gases, such as a suspected layer of oxygen underneath layers of nitrogen and methane, and sulfuric gases which tend to snow out on the cold side of the planet.
Hydrogen and Helium . When all the hydrogen is used up , it is thought that the helium will convert into carbon, and the Sun will become a Red Giant. At this late stage it will swallow up all the inner rocky planets including Earth; but that is millions of years into the future.
The two main atmospheric gases are nitrogen and oxygen. The approximate percentage for nitrogen is 78% and oxygen's approximate percentage is 21%.
The two main atmospheric gases are nitrogen and oxygen. The approximate percentage for nitrogen is 78% and oxygen's approximate percentage is 21%.
Nobody invented gasses. Gasses are one of the four naturally occurring states of matter: * Gasses * Liquids * Solids * Plasmas
Nitrogen is an element, meaning that its one and only ingredient is nitrogen. Elements are made up of atoms instead of molecules, excepting the occurrence where its made up of diatomic molecules, but either way it does not have any ingredients other than itself.