Intermolecular Forces

Question 1

What are van der waals forces?

Answer 1

weak intermolecular attractions
* including LONDON DISPERSION forces & DIPOLE-DIPOLE forces

Question 2

What’s the dipole-dipole force?

Answer 2

force of attraction between POLAR molecules
~ the attractive forces between the positive end of one polar molecule and the negative end of another molecule

Question 3

What is a polar molecule?

Answer 3

a molecule that is slightly positively charged at one end and slightly negatively charged at the other because of electronegativity differences

Question 4

What’s the london dispersion force?

Answer 4

an attractive force acting between all molecules, including non-polar molecules

~ the weakest intermolecular force

Question 5

What’s hydrogen bonding?

Answer 5

attraction of hydrogen atoms bonded to nitrogen, oxygen, and fluorine in adjacent molecules
~ a relatively strong dipole-dipole force that can only occur between O-H, N-H, and F-H bonds

Question 6

Is the electrostatic force present in ionic bonds?

Answer 6

Yes