In classical physics a perfect vacuum contains no matter.
However in quantum physics the Heisenberg uncertainty principle prohibits such a condition, requiring that even a perfect vacuum must contain particles of both matter and antimatter being continuously created and annihilated, each particle existing for only a very short period of time.
However in the real world creating a perfect vacuum is as impossible as reaching absolute zero temperature. Thus any practical vacuum will always contain very tiny traces of gas.
The matter exists in everywhere, include the vacuum.
No, a vacuum is an absence of matter.
Nothing: a vacuum is the lack of matter.
vacuum
A complete vacuum contains no matter.
none, because you need oxygen to respire and a vacuum is the absence of matter and oxygen is matter
Matter is everywhere. Where there is no matter , it is a vacuum. You as a biological organism are matter.
There is no space where there is no matter. Even in a vacuum, matter, no matter how miniscule does exist.
Conduction cannot occur within a vacuum because it requires a substrate (i.e. matter) for energy to be transferred.
No. Heat is a measure of molecular energy in matter, a true vacuum would not contain matter. However, since there is no such thing as a complete vacuum, then Yes.
A vacuum is not visible, as it is an absence of matter. Matter must exist to be seen, and so a vacuum cannot be seen.
The opposite of a vacuum is matter or substance. A vacuum is a space devoid of matter, while matter refers to physical substance that occupies space.