Unit 1 Lesson 8

Question 1

Intramolecular force

Answer 1

A force that holds atoms or ions together includes ionic bonds, and covalent bonds

Question 2

Intermolecular forces + examples

Answer 2

Interaction between molecules. Broken when changing by states. Affects boiling/melting point and solubility
London dispersion forces
Dipole dipole
Hydrogen bonding

Question 3

London dispersion forces

Answer 3

Weak attractive force between all molecules. Caused by the constant movement of electrons in molecules which creates temporary charges. The electrons attract to the positive nuclei of nearby molecules.

Question 4

What creates stronger London dispersion forces

Answer 4

Bigger molecules create a stronger force
Larger surface area results in a stronger force (linear shapes = stronger force)

Question 5

Dipole dipole

Answer 5

Strong force between two more more polar molecules. The positive and negative ends of the molecule attract. Dipole dipole force is permanent and stong.

Question 6

Hydrogen bond

Answer 6

When the positive hydrogen nuclei attract to the lone pairs of electrons from oxygen nitrogen and Florine creating a strong force