Final answer:
The balanced chemical equation for the reaction between solid aluminum and gaseous oxygen to form aluminum oxide is (1) 4Al(s) + 3O₂(g) → 2Al₂O₃(s).
Step-by-step explanation:
The balanced chemical equation for the reaction between solid aluminum and gaseous oxygen to produce aluminum oxide is option 1: 4Al(s) + 3O₂(g) → 2Al₂O₃(s). This is the correct representation of the reaction where four moles of aluminum react with three moles of oxygen gas to form two moles of aluminum oxide. Each element is balanced, meaning the number of atoms for each element in the reactants equals the number in the products.