This sequence represents the process of forming aluminum oxide (Al2O3) starting from potassium metal (K) as the initial reactant. The steps involved are:

Potassium metal (K) reacts with water to produce potassium hydroxide (KOH).Potassium hydroxide (KOH) reacts with aluminum metal (Al) to produce aluminum hydroxide (Al(OH)3).Aluminum hydroxide (Al(OH)3) undergoes further dehydration to form aluminum oxide hydroxide (Al2(OH)3).Aluminum oxide hydroxide (Al2(OH)3) further dehydrates to form aluminum sulfate (Al2(SO4)3).Aluminum sulfate (Al2(SO4)3) decomposes to produce aluminum metal (Al).Aluminum metal (Al) reacts with oxygen to form aluminum oxide (Al2O3).