The reaction between Al2O3 and Al2(SO4)3 can be written as:

Al2O3 + Al2(SO4)3 -> Al(OH)3 + Al2O3

This reaction involves the formation of aluminum hydroxide (Al(OH)3) from the reaction between aluminum oxide (Al2O3) and aluminum sulfate (Al2(SO4)3). The resulting products are aluminum hydroxide and aluminum oxide.