Write the balanced symbol equation for the extraction of copper from cuprite using carbon. Name the iron ore used in a blast furnace. Identify the chemical that is reduced in the given equation.

c) The balanced symbol equation for the extraction of copper from cuprite ($\text{Cu}_2\text{O}$) using carbon ($\text{C}$) is:

$$2\text{Cu}_2\text{O} + \text{C} \rightarrow 4\text{Cu} + \text{CO}_2$$

d) (i) The name of the iron ore used in the blast furnace is hematite.

d) (ii) In the given equation, $\text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 2\text{Fe} + 3\text{CO}_2$, the chemical that is reduced is $\boxed{\text{Fe}_2\text{O}_3}$.
This is because $\text{Fe}_2\text{O}_3$ loses oxygen atoms to become $\text{Fe}$, which is the definition of reduction.