Final answer:
The reactants in the chemical equation where aluminum reacts with iron nitrate are aluminum and iron nitrate. Reactants are the starting materials in a chemical reaction.
Step-by-step explanation:
The reactants in the chemical equation where aluminum reacts with iron nitrate to form aluminum nitrate and iron are aluminum and iron nitrate. A reactant is a substance that takes part in and undergoes change during a reaction. In this example, solid aluminum (Al) and iron nitrate would be the starting materials that undergo a chemical change to form new substances.