Yes. The air around you is 78% nitrogen, 21% oxygen and about 1% Argon
CO2 gas is more dense than the mixture of air we breathe. You can see this when dry ice sublimates.
It is a mixture of air with one or more other gases.
mixture
air is a mixture of elements (nitrogen, oxygen, trace amounts of other elemental gases) plus compounds (water vapor, nitrogen and sulfur oxides, CO2)
Yes, it is a homogeneous mixture (with exception of a bad atmosphere in the kitchen or during building reparations etc.).
lecture room, store room, preparation room
This situation demonstrates that the air in the room is a solution. Air is a mixture of gases, and when light passes through it, it shows a homogeneous mixture without visible particles or scattering, characteristic of a solution.
A room air conditioner will being putting out a haze if the air contains high levels of humidity. The mixture of cold and warm air will produce visible water vapor.
The pure nitrogen is a chemical element, gaseous at room temperature.
No. Air is a mixture.
The acoustics in the lecture room are terrible.
Yes, air is a mixture. It is a homogeneous mixture.
Air is a homogeneous mixture.
Air is a homogeneous mixture.
The classroom was attentive to Prof's lecture.
Air is a mixture.
Air is a homogeneous mixture