5.3 Intermolecular Forces

Question 1

Define a London-Dispersion bond.

Answer 1

a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles

Question 2

Define a Dipole-Dipole bond.

Answer 2

polar molecules interact with each other through space

Question 3

Define a Hydrogen Bond.

Answer 3

a stronger type of dipole-dipole bond formed with H-O, H-N, and H-F

Question 4

Rank the following bonds from weakest to strongest:
hydrogen, london dispersion, dipole-dipole

Answer 4

1. london dispersion
2. dipole-dipole
3. hydrogen

Question 5

What type of intermolecular attractions can be formed with all molecules?

Answer 5

London Dispersion

Question 6

What makes a molecule polar?

Answer 6

opposite ends, must contain a polar covalent bond, asymmetrical pull of electrons over molecule

Question 7

Define hydrophilic.

Answer 7

water loving

Question 8

Define hydrophobic.

Answer 8

water avoidant

Question 9

True or False?
All molecules can form dipole-dipole interactions.

Answer 9

False

Question 10

True or False?
Hydrogen bonds can only be formed when a Oxygen and Hydrogen bond is present.

Answer 10

False