(a)[1]
State the name of one common iron ore.
(b)[2]
Coke burns to produce carbon dioxide. The reaction is exothermic. Explain, using bond breaking and bond making, why this reaction is exothermic.
(c(i))[1]
Carbon monoxide reduces the iron(III) oxide present in the iron ore. $\text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 2\text{Fe} + 3\text{CO}_2$ Use this equation to explain why $\text{Fe}_2\text{O}_3$ has been reduced.
(c(ii))[2]
Calculate the maximum mass of iron produced when 12.5 g of iron(III) oxide react with excess carbon monoxide.
(d)[2]
Silicon dioxide is an impurity in the iron ore. Explain how adding limestone helps remove silicon dioxide from the blast furnace.
(e)[2]
Iron is a metal. Describe how metallic bonding works.