Within the blast furnace, the impurity silicon(IV) oxide is eliminated when slag is formed. Which equation shows the formation of the substance that reacts with silicon(IV) oxide to produce slag?
- A$\text{C} + \text{O}_2 \rightarrow \text{CO}_2$
- B$\text{C} + \text{CO}_2 \rightarrow \text{2CO}$
- C$\text{CaCO}_3 \rightarrow \text{CaO} + \text{CO}_2$
- D$\text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 2\text{Fe} + 3\text{CO}_2$