Intermolecular Forces

Question 1

Define intermolecular forces

Answer 1

Only exist between covalently bonded molecules
Not bonds

Question 2

Name and describe the 2 types of intermolecular forces

Answer 2

Hydrogen bonding: occurs when a hydrogen is directly bonded to oxygen, nitrogen or fluorine of another molecule. Strong forces = higher melting and boiling points

Van der Waals Force: Occurs in everything else. Forces are weaker so they result in lower melting and boiling points. The greater the number of electrons, the stronger the Van der Waals forces and the higher the melting and boiling point