amphoteric character of alumina Flashcards
1
Q
What is the formula for aluminium oxide
A
Al₂O₃
2
Q
What does amphoteric mean
A
the ability to act as an acid or as a base
3
Q
What happens with aluminium reaction in water
A
Aluminum oxide is insoluble in water.
The oxide ions are held too strongly in the solid lattice to react with the water.
4
Q
What happens with aluminium reaction in acid
A
Aluminum oxide contains oxide ions, and thus reacts with acids to form a salt and water
5
Q
what is the formula for aluminium oxide and HCL (Acid)
A
Al₂O₃ + 6HCL = 2AlCl₃ + 3H₂0
