Al + 3 HCl → AlCl₃ + 3 H

This is an oxidation-reduction (redox) reaction:

HCl is an oxidizing agent, Al is a reducing agent.

Reactants:

• Al
  • Names: Aluminum , Aluminium powder , Al ... show moreElement 13 , 13Al , Aluminium , Aluminum powder , Aluminum metal , Elemental aluminum show less
  • Appearance: Silvery-white-to-grey powder ; Silvery-white, malleable, ductile, odorless metal.
• HCl – Chlorane , Hydrogen chloride
  • Other names: Hydrochloric acid , M , Uriatic acid ... show moreHydronium chloride , Chlorhydric Acid , Hydrochloric acid gas , HCl , Anhydrous hydrogen chloride , Hydrochloric acid, anhydrous , Aqueous hydrogen chloride , [Note: Often used in an aqueous solution.] show less
  • Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]

Products:

• AlCl₃ – Aluminium chloride
  • Other names: Aluminium(III) chloride , Aluminum trichloride , Aluminum chloride ... show moreAluminium chloride (anhydrous) , Aluminum chloride anhydrous , [AlCl3] , AlCl3 , Aluminium trichloride show less
  • Appearance: White or pale yellow solid | hygroscopic ; Colourless-to-white powder. turns grey-to-yellow on exposure to moisture
• H