(a)[1]
Explain why hydrochloric acid reacts with magnesium, but not with copper.
(b)[1]
Brass is made from copper and zinc. The table indicates the way brass composition changes its relative strength. How does the composition of brass influence its strength?
(c)[3]
Use your knowledge of the structure of metals to explain why brass is stronger than pure copper. You may add a labelled diagram if you wish.
(d)[3]
Draw a labelled diagram to show how copper can be electroplated onto a steel rod.
(e)[2]
An 11.09 g sample of a copper oxide contains 9.86 g of copper. Deduce the empirical formula of this oxide of copper.