#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