Science Entry Examination Worksheet With Answers - Whitgift School Page 4
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50Whitgift School
(c)
Part of the reactivity series of metals is shown below.
most reactive
sodium
calcium
magnesium
aluminium
zinc
iron
lead
least reactive
copper
Use the reactivity series above to answer all the questions below.
(i)
Why was the highest rise in temperature obtained with magnesium and
copper sulphate?
................................................................................................................
................................................................................................................
1 mark
(ii)
Why was the rise in temperature obtained with zinc and copper sulphate
not much higher than the rise in temperature obtained with iron and copper
sulphate?
................................................................................................................
................................................................................................................
1 mark
(iii)
In which of the following mixtures would there be a rise in temperature?
Write yes or no in each blank box.
Would there be a rise in
mixture
temperature?
aluminium +
sodium chloride
calcium +
zinc sulphate
lead +
zinc chloride
magnesium +
iron chloride
2 marks
maximum 6 marks
Whitgift School
| 13+ Science Examination - Sample Paper
4
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