Exam 3

Question 1

Electron geometry
Steric num: 3
Angle:

Answer 1

Trigonal planar

120

Question 2

Electron geometry:
Steric num: 4
Angle:

Answer 2

Tetrahedral

109

Question 3

Electron geometry:
Steric num: 5
Angle:

Answer 3

Trigonal bi-pyramid
120 between two legs
90 between three top arms

Question 4

Electron geometry:
Steric num: 6
Angle:

Answer 4

Octahedral

90

Question 5

Molecular geometry
Lone pairs:
Bonds: 2
Angles: 1

Answer 5

Bent

Question 6

Molecular geometry
Lone pairs: 1
Bonds: 3
Angles:

Answer 6

Trigonal pyramid

Question 7

Molecular geometry
Lone pairs: 2
Bonds: 2
Angles:

Answer 7

Bent

Question 8

Molecular geometry
Lone pairs: 1
Bonds: 4
Angles:

Answer 8

Sawhorse or seesaw

Question 9

Molecular geometry
Lone pairs: 2
Bonds: 3
Angles:

Answer 9

T-shape

Question 10

Molecular geometry
Lone pairs: 3
Bonds: 2
Angles:

Answer 10

Linear
180
Two lone pairs act as legs, 1 lone pair acts as head

Question 11

Molecular geometry
Lone pairs: 1
Bonds: 5
Angles:

Answer 11

Square pyramid

Question 12

Molecular geometry
Lone pairs: 2
Bonds: 4
Angles:

Answer 12

Square planar
90
Lone pairs are axis, bonds form square

Question 13

Molecular geometry
Lone pairs: 3
Bonds: 3
Angles:

Answer 13

T-shape

Question 14

Molecular geometry
Lone pairs: 4
Bonds: 2
Angles:

Answer 14

Linear

The square planar portion is made up of lone pairs, while the axis are bonds

Question 15

Electron geometry:
Steric num: 2
Degrees:

Answer 15

Linear

180