Answer: D is right
Explanation: One mole contains 6.0225 ·10^23 molecules
Despite of the substance
The least dense layer of the earth is the crust.
One can only hold 2 electrons which only means shell two can hold 8, and for the first eighteen elements shell three can hold a maximum of eight electrons
Solvent- generally in liquid form – are used to dissolve, suspend or extract other materials, usually without chemically changing either the solvents or the other materials. this means the answer is A
Answer: Sound waves are sound and oceans waves are water waves. Water waves are bigger
Explanation: