Name the principal ore of iron.
Describe the extraction of iron from iron ore in the blast furnace. In your answer, describe: how carbon monoxide is produced; what carbon monoxide does; and the function of calcium carbonate, which is added to the blast furnace.
Describe how the particles in a liquid are arranged and how they move.
Describe how this equation demonstrates that iron is oxidised.
Define the term hydrated.
Name the two substances required for iron to rust.
Suggest how the unreacted iron can be separated from the reaction mixture.
Describe how dry iron(II) chloride crystals are prepared from a dilute solution of iron(II) chloride.