5.2.2.4 Properties of Small Molecules

Question 1

What are the melting and boilings points of a substance with small molecules?

Answer 1

• low
• often liquid or gas

Question 2

What are the forces between the small molecules?

Answer 2

• weak intermolecular forces

Question 3

What happens to the intermolecular forces when the substance is melted/boiled?

Answer 3

• overcome, not covalent bonds

Question 4

What happens when an intermolecular force increases in size?

Answer 4

• size of molecules increase; they increase together
• larger molecules means higher melting and boiling points

Question 5

Do the substances conduct electricity?

Answer 5

• no; molecules do not have an overall charge