GCSE Chemistry Edexcel 1CH0

5: (a) Transition metals, alloys and corrosion

#5.1C

Recall that most metals are transition metals and that their typical properties include:

a) high melting point b) high density c) the formation of coloure d) compounds d) catalytic activity of the metals and their compounds

as exemplified by iron

#5.2C

Recall that the oxidation of metals results in corrosion

#5.3C

Explain how rusting of iron can be prevented by:

a) exclusion of oxygen b) exclusion of water c) sacrificial protection

#5.4C

Explain how electroplating can be used to improve the appearance and/or the resistance to corrosion of metal objects

#5.5C

Explain, using models, why converting pure metals into alloys often increases the strength of the product

#5.6C

Explain why iron is alloyed with other metals to produce alloy steels

#5.7C

Explain how the uses of metals are related to their properties (and vice versa), including aluminium, copper and gold and their alloys including magnalium and brass

4
(b) Reversible reactions and equilibria
5
(b) Quantitative analysis