(a)[3]
State three chemical properties shown by transition elements.
(b)[3]
A mixture of solid copper(II) oxide and solid zinc oxide is provided. Describe how you would obtain a sample of copper(II) oxide from this mixture.
(c(i))[2]
Write the ionic half-equation for the process at the zinc electrode in cell 1.
(c(ii))[1]
Arrange the three metals, copper, nickel and zinc, in order of reactivity.
(c(iii))[2]
Complete the labels in cell 3 by putting the polarity $({+}/{-})$ of each electrode inside the circles and working out the voltmeter reading.