What is another name for electron shells

False, as a substance changes from a solid to a liquid and from a liquid to a gas the molecules get farther apart from each other

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

A. is your answer.  hope this  

The answer is d. hope i !