properties of small molecules.

Question 1

what are they made up of?

Answer 1

few atoms joined together by covalent bonds.

Question 2

what are some examples of small molecules?

Answer 2

hydrogen, oxygen.

Question 3

what are the atoms within the molecules held together by?

Answer 3

very strong covalent bonds.

Question 4

what can be said about the forces of attraction between these molecules?

Answer 4

very weak.

Question 5

to melt or boil a simple molecular compound you only need to break what and what does this mean and what is it due to?

Answer 5

intermolecular forces not the covalent bonds.
melting and boiling points are low.
molecules are easily parted from each other.

Question 6

most molecular substances are what state at room temperature?

Answer 6

liquid or gas.

Question 7

what happens to the strength of the intermolecular forces as the molecules get bigger what does this mean in terms of energy needed to break these forces and what happens to the melting and boiling points?

Answer 7

increases.
more energy is needed.
increases.

Question 8

what don’t molecular compounds do and why?

Answer 8

conduct electricity.
not charged and no free electrons or ions.