When iodide ions (I-) are added to a solution of iron(III) ions (Fe3+), an equilibrium mixture is formed. a) State a colour change you would expect to see when aqueous iodide ions, I- (aq), are mixed with aqueous iron(III) ions, Fe3+(aq)?

b) What ions are present in the equilibrium mixture?

c) Describe a simple chemical test you could carry out to show the presence of iodide ions, I- (aq), in the equilibrium mixture?