2.4 Study Guide

Question 1

Hydrogen bond attraction

Answer 1

permanent, partial charges, strongest

Question 2

Dipole dipole attraction

Answer 2

permanent, partial charges

Question 3

London Dispersion attraction

Answer 3

temporary, smaller charge, weakest

Question 4

Rank intermolecular attractions from weakest to strongest

Answer 4

London dispersion, dipole dipole, hydrogen bonds

Question 5

Hydrogen bonds are

Answer 5

strong dipole-dipole interactions between two molecules that contain an O-H, N-H, F-H bond

Question 6

What makes a molecule polar?

Answer 6

must contain a polar covalent bond, asymmetrical ends (electrons pulled to one end instead of cancelling out)

Question 7

What is the difference between intermolecular and intramolecular?

Answer 7

• Intermolecular is attractions between molecules to each other - - Intramolecular are those within make individual molecules

Question 8

What makes a molecule soluble in water?

Answer 8

If the molecule is hydrophilic then it is a water loving substance that is polar with an O-H bond.