C15: Using Our Resources

Question 1

What is Corrosion?

Answer 1

The destruction of materials by chemical reactions with substances in the environment

Question 2

What is needed for rusting too happen?

Answer 2

Water and Oxygen

Question 3

What is the word equation for the formation of rust?

Answer 3

Iron + Oxygen + Water –> Hydrated iron (III) oxide

Question 4

What is rusting?

Answer 4

A type or corrosion which is an oxidation reaction between iron, oxygen and water

Question 5

What is the chemical formula equation for the formation of rust?

Answer 5

4Fe + 3O2 + 2H2O –> 2Fe2O3 . H2O

Question 6

What is a ceramic?

Answer 6

Non-metallic solids that have a high melting point

Question 7

What are the two types of ceramics?

Answer 7

Glass and clay

Question 8

What is a composite?

Answer 8

A substance that is a combination of two types of material

Question 9

What is a polymer?

Answer 9

Polymers are very long molecules formed by joining together lots of smaller molecules