mrblake1594
05.08.2020 •
Social Studies
Explain why aluminium resists corrosion but iron does not.
Explain the term culling as used in livestock management.
thr
(a)
(ii)
State two methods of preventing iron from rusting
[4 m:
(6)
(i)
(ii)
State three benefits of practising culling
(5 m
172&1/pa/20
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Ответ:
The corrosion resistance of aluminum is due to its tendency to form a compact oxide layer over the surface. The oxide formed offers a high resistance to corrosion. The normal surface film present in air is about 1 nm thick.
Ответ: