8
One-twelfth of the mass of a carbon-12 atom is used to define a atomic mass unit.
Added 6/21/2015 10:57:42 AM
This answer has been confirmed as correct and helpful.
Confirmed by
jeifunk [6/21/2015 11:00:08 AM]
8
The temperature and volume in a closed container of gas remain constant. If the number of particles of a gas is increased, the gas pressure will increase.
Added 6/21/2015 11:00:10 AM
This answer has been confirmed as correct and helpful.