No. It will be a homogeneous mixture of gases.
No. It is a homogeneous mixture.
Neither. Helium is not a mixture at all, it is a pure substance.
Helium is an element which makes it a pure substance.
Airt is a homogeneous mixture.
solution, which is a homogeneous mixture
Smoke is a rather complex mixture of elements and several compounds, some gasses, some solids.
Neither. Helium is not a mixture at all, it is a pure substance.
Neither. Helium is not a mixture at all, it is a pure substance.
Air is a homogeneous mixture.
Air is a homogeneous mixture.
Air is a homogeneous mixture.
homogeneous
Helium is an element which makes it a pure substance.
Containing dust air is a heterogeneous mixture.
Airt is a homogeneous mixture.
homogeneous
solution, which is a homogeneous mixture
air is homogeneous