Answer:
Heterogeneous mixture.
(The composition is not uniform.)
To find the density, the formula would be d= m/V. Your answer would be 19.9 or if you round, 20.
They are changes in bonding energy between the molecules. If heat is coming into a substance during a phase change, then this energy is used to break the bonds between the molecules of the substance
Answer:
It's true.
Explanation:
In sub-energy level : number of orbitals
