4.4 Chem Study Guide

Question 1

London Dispersion

Answer 1

London dispersion is between any two molecules and has the weakest pull. London dispersion forces are when non-polar and polar atoms are attracted.

Question 2

Dipole-dipole

Answer 2

Dipole-dipole has the 2nd weakest attraction. Dipole-dipole is between 2 polar molecules.

Question 3

Hydrogen Bonds

Answer 3

Hydrogen bonds are in the middle they aren’t the weakest but they aren’t the strongest. This bond is between 2 very polar molecules. Hydrogen bonds are strong dipole-dipole interactions between 2 molecules that contain an OH, NH, and FH bond.

Question 4

Ionic Bonds

Answer 4

Ionic bonds have the 2nd strongest pull. Ionic bonds happen between ions, ions formed via transfer of valence electrons.

Question 5

Covalent

Answer 5

Covalent bonds have the strongest pull and this happens between atoms in the same molecule.

Question 6

Water

Answer 6

Is polar

Question 7

Methyl Alcohol

Answer 7

Is polar

Question 8

Ethyl Alcohol

Answer 8

Is polar

Question 9

Acetic Acid

Answer 9

Is polar

Question 10

Hexane

Answer 10

Non-polar

Question 11

Oil

Answer 11

Is Non-polar

Question 12

Which ones will be able to form hydrogen bonds with water?

Answer 12

1-4

Question 13

Which molecules will be able to form London Dispersion forces of attraction?

Answer 13

Oil and hexane