Word equation: Aluminum oxide + Sulfuric acid → Aluminum sulfate + Water
Type of Chemical Reaction: For this reaction we have a double replacement reaction.
Balancing Strategies: In this double replacement reaction we have Al2O3 + H2SO4 producing Al2(SO4)3 + H2O.
It is helpful to consider the SO4 as one item when balancing the equation. This will make things much easier.