(a)[3]
Explain these observations by referring to the kinetic particle model.
(b)[1]
What does the term oxidation mean?
(c(i))[2]
Describe a test for oxygen.
(c(ii))[2]
Balance the chemical equation for this reaction. $\text{MnO}_2 + \text{HCl} \rightarrow \text{MnCl}_2 + \text{Cl}_2 + \text{H}_2\text{O}$
(d)[2]
Use this information to arrange the metals in order of reactivity. Put the least reactive metal first.
(e)[3]
Describe three ways in which the properties of manganese differ from those of sodium.