Section 2.9 Chemistry

Question 1

2 bonds
no loan pairs

Answer 1

Linear (180)

B — A — B

Question 2

3 bond pairs
no loan pairs

Answer 2

Trigonal Planar (120)
B —- A —- B
|
B

Question 3

2 bond pairs
1 loan pair

Answer 3

Bent (<120)
0
B – A – B

Question 4

4 bond pairs
no loan pairs

Answer 4

Tetrahedral (<109.5)
B
|
B – A ||| B
△
B

Question 5

2 bond pairs
2 loan pairs

Answer 5

Bent (<109.5)
0 0
B – A – B

Question 6

3 bond pairs
1 loan pair

Answer 6

Trigonal Pyramidal
0
B — A -||| B
△
B

Question 7

Step 1

Answer 7

add valence electrons (goes by rows)

Question 8

Step 2

Answer 8

Arrange atoms w/ least electronegative in the center. (all first numbers besides H)

Question 9

Step 3

Answer 9

Add loan pairs of electron to each atom until they have an octact, not first three columns. (H, Be, B)

Question 10

Step 4

Answer 10

Count electrons used. If the same number as before, stop. If the number is different take away loan pairs until equal.

Question 11

LDF

Answer 11

All molecules

Question 12

Dipole Dipole

Answer 12

Asymmetric, polar

Question 13

Hydrogen Bonds

Answer 13

A carbon that is connected to a Nitrogen, Florine, or Oxygen.