Name the iron ore that is fed into the blast furnace.
The impurities in the iron ore are taken away as slag. What feature in the diagram shows that slag is less dense than molten iron?
Which one of the substances added to the blast furnace removes the impurities? Explain how it does this.
Hot air is blown into the blast furnace. Explain why.
How does this equation show that $\text{Fe}_2\text{O}_3$ has been reduced?
Calculate the mass of iron produced when $4.0\,\text{g}$ of $\text{Fe}_2\text{O}_3$ react with excess carbon monoxide.
Deduce the numbers of electrons, protons and neutrons in an atom of this iron isotope.
Iron is a transition element. Which two of these statements about iron are correct? Tick two boxes. Iron forms coloured compounds. Iron can act as a catalyst. Iron is brown when freshly cut. Iron has a low density. Iron has a low melting point.