Chapter 5

Question 1

Water

Answer 1

V-shaped

104.5 degrees

Question 2

Ammonia

Answer 2

Pyramidal

107 degrees

Question 3

Methane

Answer 3

Tetrahedronal

109.5 degrees

Question 4

Ionic Compounds

Answer 4

• Network of ions in the crystal
• Hard and brittle
• High melting and boiling points
• Solid at room temp
• Conducts electricity

Question 5

Covalent Compounds

Answer 5

• Individual molecules
• Soft
• Low boiling and melting points
• Liquids, gases or soft solids at room temp
• Do not conduct electricity

Question 6

Beryllium chloride

Answer 6

Linear molecule
180 degrees
Shaped adopted by any molecule that has two pairs of electrons around them

Question 7

Boron trichloride

Answer 7

120 degrees

Triangular planar

Question 8

VSEPR theory

Answer 8

Lone pair/lone pair > lone pair/bond pair > bond pair/bond pair