no, if you are talking about let's say, car gasoline, yes of course they have mass. But if you are talking about air gases. hydrogen, helium, etc. no. those types of gases do not have mass or take up space!
Ideal gases theoretically have no mass, they are single points. Normally the small size (in comparison to the large space between them) of non-ideal gasses is insignificant, however at low temperatures when kinetic energy and the space between particles is low this mass has significant effects.
gases with the higher molar mass
Gases
Gases
Yes, it is true.
yes because different gases have different mass and they will exert more of less pressure according to their mass
Yes. Gases are still comprised of atoms, each of which contributes mass.
examples of where gases don't seem to have mass
Because it's a mixture of gases.
Yes. Anything with mass is matter.
MASS
Different gasses have different masses.