A physical change.
Physical change = can be reverted + doesn't change substance
Chemical = changes substance
Answer:
atoms or molecules
Explanation:
Gas particles are constantly bumping into each other and the borders of their container.
Tar pits.
Need more help? Join our growing community here: https://questioncove.com/invite/098ZDB
1 mole consist of 6.022 ×10 ²³
Therefore in NaOH = 6.022 ×10 ²³ moles of NaOH
A compound has to be chemically bonded, however, air is not chemically bonded.
This can be proven by freezing air. By freezing air, it yields different liquids at different temperature. Liquid nitrogen has a different boiling point than liquid oxygen.
If air was a compound, they would all have a single boiling point and a single freezing point.
Hope this helps :)
