Chapter 3

Question 1

Wave function

Answer 1

Mathematical description of the wave shape from electrons (orbital)

Question 2

What are single bonds

Answer 2

sigma bonds

Question 3

What makes pi bonds

Answer 3

Multiple bonding

Question 4

Which bonds have free rotation

Answer 4

C—C
C—H
(double bonds do not rotate)

Question 5

What are isomers

Answer 5

Different compounds with the same molecular formula

Question 6

Constitutional isomers

Answer 6

differs in bond sequences

Question 7

Stereoisomers

Answer 7

differ in only the orientation of the atoms/groups

Question 8

Dipole- Dipole Interactions

Answer 8

Polar compounds have partial charges that attract each other if the charges are opposite

Question 9

London dispersion forces

Answer 9

instantaneous dipoles which result from electron movement (polarization)

Question 10

As molecular weight increases (ch3)

Answer 10

Attraction increases
Boiling point increases

Question 11

As surface area increases (Ch3)

Answer 11

boiling point increases

Question 12

Hydrogen bonding

Answer 12

attractive force between a lone pair and a hydrogen

Question 13

Polar solute + Polar solvent

Answer 13

Good pairing

Question 14

nonpolar solute + nonpolar solvent

Answer 14

Good pairing

Question 15

polar solute + nonpolar solvent

Answer 15

poor pairing, Will not work at all

Question 16

Nonpolar Solute + polar solvent

Answer 16

poor pairing, will work occasionally