Answer:
B
Explanation:
B It’s a physical change because the water and the salt kept their original properties.
Answer:
As a substance changes from a solid to a liquid to a gas, its molecules first the molecules are moving fast enough, they are able to "escape." They leave the surface of the liquid as gas molecules. Evaporation is not the only process that can change a substance from a liquid to a gas. The same change can occur through boiling.
Explanation:
On a molecular level there is a lot of movement which in turn is the reason why heat is generated.
The electrons begin at the lowest level, and then fills up until it reaches the highest level, and completely fills the outer shell.
