Chemistry Unit 1 - Bonds (mini)

Question 1

Intermolecular force

Answer 1

force of attraction and repulsion between MOLECULES

Question 2

London Dispersion Forces
-level of intensity
-what it does (caused by what?)
-What uses LDF

Answer 2

Weakest attraction
temporary imbalance in electrons
Non-Polar Covalent bonds + Covalent bonds

Question 3

Dipole-Dipole
-level of intensity
-What uses dipole-dipole
- How it works (does it share?)

Answer 3

Medium attractiveness (relatively Strong but one is stronger)
Polar covalent bonds have it
It works by a High Difference of EN element taking more of the e- than the lower difference of EN
This creates partial negativity zones (high EN) and partial positivity zones (low EN)

Question 4

Hydrogen Bonding
-level of intensity
-What uses it
- How it works (does it share?)

Answer 4

Highest attractiveness between molecules
Anything with an H and F,O, N
it works because any element with H have a HIGH EN difference, making the bond stronger than a dipole-dipole

Question 5

What do the intermolecular forces affect in a molecule? (4)

Answer 5

Boiling Point
Melting Point
Solubility
Surface tension

Question 6

IF an intermolecular force is London Dispersion force, what will its Boiling, Melting point and surface be?

Answer 6

LOW

Question 7

IF an intermolecular force is hydrogen bonding, what will its Boiling, Melting point and surface be?

Answer 7

HIGH