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
Yes, it is a homogeneous mixture (with exception of a bad atmosphere in the kitchen or during building reparations etc.).
air is a mixture of elements (nitrogen, oxygen, trace amounts of other elemental gases) plus compounds (water vapor, nitrogen and sulfur oxides, CO2)
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.
The acoustics in the lecture room are terrible.
No. Air is a mixture.
The classroom was attentive to Prof's lecture.
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.