Intermolecular Forces

Question 1

List the three intermolecular forces:

Answer 1

Van der waals
Ionic crystal
Network covalent bonds

Question 2

Van der waals

Answer 2

Attracts uncharged molecules

4 types of these

Question 3

Ionic crystal

Answer 3

Atoms held together with ionic bonds(metals give non metals take)
Usually solids with high melting point ex. Salt

Question 4

Network covalent bonding

Answer 4

Atoms are held together by covalent bonds in repeating lattice
Have high melting and boiling point and are insoluble in water ex. Diamond

Question 5

List the four types of Van der waals forces

Answer 5

London dispersion forces- temporary attractive force

Weakest

Question 6

Dipole-Dipole forces

Answer 6

Attraction between positive part of polar molecule and negative part of polar molecule
Only works when molecules are really close
2nd weakest

Question 7

Hydrogen Bonding

Answer 7

Attraction between molecules and hydrogen atom(not covalent bond), covalently bonded to electronegative atom(N,O,F) to another electronegative atom
2nd strongest

Question 8

Ion-Dipole forces

Answer 8

Between ion and neutral molecule that has a dipole

Strongest