Covalent Compounds

Question 0

Give the properties of simple covalent structures

Answer 0

• low melting and boiling points because they are weak

- do not conduct heat or electricity

Question 1

What are the melting and boiling points of covalent compounds like?

Answer 1

Covalent compounds have low melting and boiling points (often gases) as there is no attraction between the molecules

Question 2

Explain why simple molecules do not conduct electricity

Answer 2

Because they don’t have any free electrons

Question 3

Examples of molecules with giant covalent structures

Answer 3

Diamond
Graphite
Silicon dioxide

Question 4

Explain why giant covalent structures have high melting and boiling points

Answer 4

Because a lot of strong covalent bonds Must be BROKEN

Question 5

Explain the bonding in diamonds

Answer 5

Each carbon atom is joined to four other carbon atoms

Question 6

Explain the bonding in graphite

Answer 6

Graphite is a form of carbon which forms layers. Each carbon atom in a layer is joined to three other carbon atoms.