What are the chemical properties of aluminum?

Aluminum is a reactive metal. On the surface of aluminum in dry air, a dense oxide film of about 50 angstrom (1 angstrom =0.1 nm) is immediately formed, so that aluminum will not be further oxidized and can withstand water.

Aluminum powder burns easily when mixed with air; Molten aluminum reacts violently with water; Many metal oxides can be reduced to corresponding metals at high temperature; Aluminum is amphoteric, soluble in strong bases, but also soluble in dilute acids.

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