Week 2

Question 1

What is an Inter-Molecular Force?

Answer 1

Force between Molecules

Question 2

What is an Intra-Molecular force?

Answer 2

Force within Molecules

Question 3

Types of Intra Molecular Bonds?

Answer 3

Metallic
Ionic
Covalent

Question 4

What is a Metallic Bond?

Answer 4

Nuclei share electrons
Metal atoms

Question 5

What is an Ionic Bond

Answer 5

Ion Formation
electrons are exchanged

Question 6

What is a Covalent Bond

Answer 6

Atoms Share Electrons
Two Non Metals
shared electrons for compound stability

Question 7

Characteristics of Polar Molecules

Answer 7

Hydrophilic

Question 8

Types of Intermolecular Bonds

Answer 8

Hydrogen Bond
Dipole-Dipole Bond
London dispersion forces/Van Der Waals Forces

Question 9

Dipole-Dipole Bonds

Answer 9

Electrostatic interactions
Two Polar Molecules
both must have dipole

Question 10

Hydrogen Bond

Answer 10

When molecules have covalently bonded hydrogen
Strongest interaction
ONLY F O N
Florine
Oxygen
Nitrogen

Question 11

Dispersion Force

Answer 11

Weakest
non-polar molecules
Unsymmetrical distribution
temporary dipoles

Question 12

Relative molar mass (Mr)

Answer 12

Grams/mole

Question 13

Molarity

Answer 13

Moles/litre (M)

Question 14

Octet Rule

Answer 14

Elements react to achieve an outer shell of 8 valence