a. How is limestone turned into lime in industry?

b. Which major construction materials are made from cement?

c. Both calcium carbonate and magnesium oxide have giant ionic structures. Why is magnesium oxide used to line furnaces but calcium carbonate is not?

d. When lightning strikes during a thunderstorm, the rain that falls is a dilute solution of nitric acid (HNO₃). Use a balanced chemical equation, including state symbols, to show how slaked lime (calcium hydroxide) added to soil can neutralise nitric acid.