By "gas" do you mean "gasoline" or "the third state of matter besides solid and liquid"?
If the first, there are several popular aviation fuels: 100LL aviation gasoline, Jet A and Jet-A1 (which are 100 percent very pure kerosene), Jet B (which is 70 percent unleaded gasoline and 30 percent kerosene), JP-4 (50 percent gasoline, 50 percent kerosene), JP-5 (same thing as Jet-A, used on aircraft carriers for safety purposes) and JP-8 (a purified form of ultra-low-sulfur diesel). What you use depends on the airplane you have and whether you're getting the fuel from a civilian or military supplier. There are also some really off-the-wall fuels like 145-octane avgas, which is very hard to get because only World War II fighter planes need it; and JP-7, the fuel needed for the SR-71 spy plane.
If the second, oxygen and nitrogen are the two main gases.
Not in a typical airplane engine, however if you had a specially made modified engine, than it is feasible.
Airplanes are not made of gas.
Atomic bomb
you do not use gas for an airplane you would use a cemical/ assid
gas.!
Aviation fuel, either jet fuel or aviation gas referred to as "avgas."
so it can fly
No.
its an airplane stupid not an aeroplane
Aircraft tires can be filled with regular compressed air, however pure nitrogen is also often used.
The first airplane was used for travel in the year 1921
Depends on the airplane size and engines used.