Interactions Between Molecules

Question 1

With regard to the properties of covalent compounds (true or false):

They have high melting and boiling points

Answer 1

False. The forces between the molecules are weak requiring little energy to break them. At room temperature they are likely to be gases or volatile liquids.

Question 2

With regard to the properties of covalent compounds (true or false):

They are soluble in water

Answer 2

False. They usually dissolve in non-polar or organic liquids.

Question 3

With regard to the properties of covalent compounds (true or false):

They conduct electricity

Answer 3

False.

Question 4

With regard to the properties of covalent compounds (true or false):

Their bonds consist of shared electrons

Answer 4

True. In covalent bonding each atom donates an electron to a shared electron pair.