(a)[2]
Nickel has good electrical conductivity and good thermal conductivity. Nickel is also ductile and malleable. State two more physical properties of nickel that are typical of a transition element.
(b(i))[1]
Explain why nickel conducts electricity well.
(b(ii))[1]
Explain why nickel can be drawn into wires.
(c)[3]
Compound X contains nickel, carbon and oxygen only. X is 28.1% by mass carbon and 37.4% by mass oxygen. Calculate the empirical formula of compound X.
(d(i))[2]
Nickel reacts slowly with dilute hydrochloric acid to produce aqueous nickel(II) ions and hydrogen. Construct the ionic equation for this reaction. Show state symbols in your answer.
(d(ii))[1]
Predict whether nickel reacts with aqueous copper(II) ions. Explain your answer.