Bonding and Lewis Structure Quiz Review

Ionic bonds are formed between...

• Non - metals

• A metal and a non-metal

• Metals

Which of the below is an ionic compounds?

• Ni

• MgCl₂

• H₂O

• CH₄

Which properties are all characteristics of ionic compounds?

• solids with high melting and boiling points

• soft solids which are highly malleable

• when solid, the ions are held in place so the compounds cannot conduct electricity

• conduct electricity when dissolved or molten

What properties does an ionic compound have?

• A low boiling point and it conducts electricity when dissolved in water

• A high melting point and it conducts electricity when molten or dissolved

• A high boiling point and it conducts electricity when solid

Why do ionic compounds NOT conduct electricity when they are in their solid state?

• Their ions are free to move.

• Their ions are held in fixed positions.

• Their electrons are free to move

• Their electrons are held in a fixed state

Ionic compounds conduct electricity when dissolved in water. Which statement below best explains the property?

• Ions are free to move.

• Electrons are free to move.

• Bonds are strong.

• There are weak intermolecular forces of attraction.

Why do ionic compounds have high melting and boiling points?

• Their ions are free to move.

• Their ions are held in fixed positions.

• They have many strong bonds which require a large amount of heat energy to overcome these strong bonds.

• They have weak bonds which require a little amount of heat energy to overcome these weak bonds.

Factors affecting the value of lattice energy

• the size of the ions only

• the charges of the ions only

• BOTH the size of the ions AND the charges of the ions

Bond breaking is

• exothermic

• endothermic

bond making is

• exothermic

• endothermic