(a)[1]
State one additional physical property shared by all metals.
(b)[1]
Name the two substances, apart from iron, that need to be present for iron to rust.
(c(i))[1]
What can be inferred about the reactivity of zinc from this reaction?
(c(ii))[2]
Identify the oxidising agent in this reaction. Explain your answer in terms of electron transfer.
(d)[3]
Describe two simple experiments that show zinc oxide is amphoteric. Name the reagents you would use and describe the observations you would make.