Because there is more than just one thing in it. There is oxygen, nitrogen, carbon dioxide and much more, but none of the elements are chemically combined. If you had the right tools you could separate the different gases and particles.
No. Air is a mixture.
Yes, air is a mixture. It is a homogeneous mixture.
Air is a homogeneous mixture.
Air is a homogeneous mixture.
Air is a mixture.
Air is a homogeneous mixture
Air is a homogeneous mixture.
Air is a mixture.
Air is a homogeneous mixture.
Air is a mixture of gases.
Air is a mixture of gases.
Yes, air is a homogeneous mixture.