Air is a noun and not and adjective, hence it can not be a property. Gas would be a physical property describing air. Inert (for example) would be a chemical property.
The property of air that a gas exhibits is that it can be compressed and it occupies space.
Air is compressible, meaning its volume can change in response to changes in pressure.
The property is flammability.
This is a chemical property.
The fact that it oxidizes in air is a chemical property of methane.
Yes, the fact that hydrogen can explode when ignited in air is a chemical property. It is a characteristic of hydrogen's reactivity with oxygen that results in a combustion reaction, producing energy in the form of heat and light.
Combustibility is a chemical property.
actually no its not
No it's not.
Air has mass. Mass is a property and does not have mass
The temperature of the air.