PV=nRT
P=nRT/V
P=[(0.650mol)(0.08206)(298K)]/(0.750L)=21.2atm
I think it is B) 18 but you'd have to check. Help?
Solar Energy: source Sun
Nuclear Energy: source:fission of Uranium nucleus
Sound Energy: source: Loudspeakers
Answer:
Electrons occupy orbitals with the lowest energy first.
Explanation:
The Aufbau Principle states that electrons will fill the atomic orbitals with the lowest energy levels first, before occupying others with higher energy levels.
For example, electrons will fill the 1s orbital before filling the 2s orbital.
