Shapes of simple molecules and ions

Question 1

What does a straight line represent?

Answer 1

A bond in the plane of the paper

Question 2

What does a solid wedge represent?

Answer 2

A bond coming out of the plane of the paper

Question 3

What does a dotted wedge represent?

Answer 3

A bond that goes into the plane of paper

Question 4

How much does each lone pair reduce the bond angle?

Answer 4

2.5

Question 5

What is the bond angle with 4 bonded pairs and 0 lone pairs?

Answer 5

109.5 degrees
tetrahedral

Question 6

What is the bond angle with 3 bonded pairs and 1 lone pair?

Answer 6

107 degrees
trigonal pyramidal

Question 7

What is the bond angle with 2 bonded pairs and 2 lone pairs?

Answer 7

104.5 degrees
non - linear

Question 8

What is the bond angle with 2 bonded pairs and 0 lone pairs?

Answer 8

180 degrees
linear

Question 9

What is the bond angle with 3 bonded pairs and 0 lone pairs?

Answer 9

120 degrees
trigonal planar

Question 10

What is the bond angle with 5 bonded pairs and 0 lone pairs?

Answer 10

120 and 90 degrees
trigonal bypyramidal

Question 11

What is the bond angle with 6 bonded pairs and 0 lone pairs?

Answer 11

90 degrees
octrahedral

Question 12

What is the shape, bond angle and types of bonds in NH4+?

Answer 12

• tetrahedral
• 109.5 degrees
• it has one dative covalent bond supplied by nitrogen, leaving one hydrogen positive

Question 13

What is the shape, bond angle and types of bonds in CO32-?

Answer 13

-trigonal planar
- 120 degrees
- one has a double c= o bond and the other two are negative

Question 14

What is the shape, bond angle and types of bonds in NO3-?

Answer 14

• trigonal planar
• 120 degrees
• one double N=O bond
• One dative bond supplied by nitrogen
• One negative oxygen

Question 15

What is the shape, bond angle and types of bonds in SO42-?

Answer 15

• tetrahedral
• 109.5 degrees
• two double s=o bonds
• two negative O

Question 16

Draw all bonds?

Answer 16

• answer online