no
The property of air that a gas exhibits is that it can be compressed and it occupies space.
For Gas Exchange@@
In air, light reflects off gas molecules and hence, "fills more space".
Air, obviously. What else could be between them, the natural gas? Those gas have little space between them and could only fit they, the air.
That is called a vacuum.
It's a gas. The air molecules are free to move around anywhere in the balloon.
Space is mostly a vacuum with very low density of gas particles, including air. The Earth's atmosphere extends to a certain distance from the planet, but beyond that, there is very little air in space. Astronauts in space rely on life support systems to provide them with breathable air.
That sounds like the description of a vacuum. However, please note that "No air or gas" is not actually possible; the term "vacuum" really refers to a space that contains SIGNIFICANTLY LESS gas than we normally have in our atmosphere.
An alveolar dead space is the volume of air in the alveoli of the lungs which does not partake in gas exchange.
Yes, but a very minimal amount. And this is far different than terrestrial "air." The gas in outer space is mainly hydrogen.
Dead space volume
freon and 134 are in a closed space