GenChem 2 L2: Intermolecular Forces of Attraction (3)

Question 1

How To Identify Polar and NonPolar Molecules:

● central atom has no lone pairs of electrons

● surrounding atoms has no lone pairs if electrons

Answer 1

Nonpolar

Question 2

How To Identify Polar and NonPolar Molecules:

● has lone pairs of electrons

● surrounding atoms has lone pair of electrons

Answer 2

Polar

Question 3

How To Identify Polar and NonPolar Molecules:

___ = Non-Polar

___ = Polar

___ = Polar-Covalent

___ = Polar Ionic

Answer 3

lower than 0.5 = Non-Polar

equal or higher than 0.5 = Polar

lower than 1.7 = Polar-Covalent

higher than 1.7 = Polar Ionic

Question 4

How to Determine Which IMF a Substance has:

● can be Dipole-Dipole force
● can be London Dispersion Force

Answer 4

Polar Molecules

Question 5

made up of same atoms

Answer 5

Homoatomic Molecules

Question 6

How to Determine Which IMF a Substance has:

● can only be London Dispersion Force

Answer 6

Nonpolar Molecules

Question 7

made up of different atoms

Answer 7

Heteroatomic Molecules

Question 8

How to Determine Which IMF a Substance has:

● hydrogen bonded to fluorine, oxygen, nitrogen

● Hydrogen Bonding

Answer 8

H-FON

Question 9

molecules with a net dipole moment

Answer 9

Polar Covalent Compounds

Question 10

molecules with zero dipole moment

Answer 10

Nonpolar Covalent Compounds

Question 11

Differentiate Net Dipole Moment between Zero Dipole Moment

Answer 11

Net Dipole Moment - electrons are not equally shared between atoms.

Zero Dipole Moment - electrons in the bonds are shared equally between atoms