Covalent Bonding Test Review

Question 1

What are the properties of water due to hydrogen bonding?

Answer 1

1. Relatively high melting and boiling points for a compound with a low mass
2. Liquid over a broad range of temperature values
3. High specific heat values
4. Water expands upon freezing
5. Universal solvent (can dissolve both polar and ionic substances)

Question 2

What is a coordinate covalent bond?

Answer 2

Type of bond when one atom donates both e- to the bond

Question 3

What is LDF?

Answer 3

London Dispersion Forces or induced dipole (weakest IMF, in all molecules)
Non-polar molecules only have LDF
All covalent molecules will have LDF
LDF forces become stronger with higher molecular mass

Question 4

What are dipole forces?

Answer 4

Occur as the result of the attraction between polar molecules

Question 5

What is a hydrogen bond?

Answer 5

Strongest IMF
A force not a bond between 2 molecules
Only occurs when hydrogen is bound to a small, highly electronegative atom (N, O, F)

Question 6

What are the exceptions for VSEPR Theory?

Answer 6

Linear (5 cloud) and square planar (6 cloud) - NP

Question 7

1

Answer 7

s
180

Question 8

2

Answer 8

sp
180

Question 9

3

Answer 9

sp2
120

Question 10

4

Answer 10

sp3
109.5

Question 11

5

Answer 11

sp3d
90 and 120

Question 12

6

Answer 12

sp3d2
90

Question 13

Linear

Answer 13

AX
AX2
AXE
AXE2
AXE3
AX2E3

Question 14

Trigonal planar

Answer 14

AX3

Question 15

Bent

Answer 15

AX2E
AX2E2

Question 16

Tetrahedral

Answer 16

AX4

Question 17

Trigonal pyramid

Answer 17

AX3E

Question 18

Trigonal bipyramid

Answer 18

AX5

Question 19

See Saw

Answer 19

AX4E

Question 20

T shape

Answer 20

AX3E2

Question 21

Octahedral

Answer 21

AX6

Question 22

Square pyramid

Answer 22

AX5E

Question 23

Square planar

Answer 23

AX4E2