Answer:
D
Explanation:
Because when you combine chemical substances they create a new substance unlike physical substances .
Answer:
Intermolecular forces (IMFs) can be used to predict relative boiling points. The stronger the IMFs, the lower the vapor pressure of the substance and the higher the boiling point. Therefore, we can compare the relative strengths of the IMFs of the compounds to predict their relative boiling points.
Explanation:
Emitted/given off. exo is a way to remember that is is going away. think of a flame. the heat is emitted off onto you.
