Extracting iron equations

Question 1

Coke burns and produces carbon dioxide

Answer 1

C + O₂ > CO₂

Question 2

The carbon dioxide reacts with carbon to produce carbon monoxide

Answer 2

CO₂ + C > 2CO

Question 3

The carbon monoxide then reduces the iron ore to iron

Answer 3

3CO + Fe₂ O₃ > 3CO₂ + 2Fe

Question 4

The limestone is decomposed by the heat into calcium oxide and carbon dioxide

Answer 4

CaCO₃ > CaO + CO₂​

Question 5

The calcium oxide then reacts with the sand to form calcium silicate, or slag, which is molten and can be tapped off

Answer 5

CaO + SiO₂ > CaSiO₃ (molten slag)