Cu₂O + 2 HCl → 2 CuCl + H₂O

Reactants:

• Cu₂O – Copper(I) oxide
  • Other names: Cuprous oxide , Dicopper oxide , Cuprite ... show moreRed copper oxide , Copper (i) oxide , Copper (I) oxide show less
  • Appearance: Brownish-red solid ; Yellow, red or brown crystalline powder
• 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:

• CuCl – Copper(I) chloride
  • Other names: Cuprous chloride , Cuproid , Cu-lyt ... show moreCuCl , Copper chloride (CuCl) , Copper chloride , Dicopper dichloride , Copper(1+) chloride , Copper monochloride show less
  • Appearance: White powder, slightly green from oxidized impurities
• H₂O – Water, oxidane
  • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide ... show moreDihydrogen monoxide (DHMO) (systematic name) , Hydrogen monoxide , Dihydrogen oxide , Hydric acid , Hydrohydroxic acid , Hydroxic acid , Hydrol , Μ-oxido dihydrogen , Κ1-hydroxyl hydrogen(0) show less
  • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas