(a)[3]
Show by calculation which reactant is in excess after $144\,\text{cm}^3$ of chlorine gas is passed into $38.0\,\text{cm}^3$ of $0.250\,\text{mol dm}^{-3}$ sodium hydroxide.
(b(i))[2]
Construct the equation for chlorine displacing bromine from aqueous potassium bromide.
(b(ii))[1]
Explain why bromine does not react with aqueous potassium chloride.
(b(iii))[2]
State the charge of a chloride ion and its electronic configuration.
(c)[2]
Explain why sodium chloride does not conduct electricity when solid but does conduct electricity when molten.