PdCl₂ + CO + H₂O → Pd + CO₂ + 2 HCl

This is an oxidation-reduction (redox) reaction:

CO is a reducing agent, PdCl₂ is an oxidizing agent.

Reactants:

• PdCl₂
  • Names: Palladium(II) chloride , Palladium dichloride , Palladous chloride ... show morePalladium(2+) chloride , PdCl2 , Dichloropalladium , Palladium chloride show less
  • Appearance: Dark red solid | hygroscopic (anhydrous) | dark brown crystals (dihydrate)
• CO – Carbon monoxide
  • Other names: Carbon monooxide , Carbonous oxide , Carbon(II) oxide ... show moreCarbonyl , Flue gas , Monoxide , Carboneum oxygenisatum , CO , C#O , [CO] , Carbon oxide , Carbonic oxide show less
  • Appearance: Colorless gas ; Odourless tasteless colourless compressed gas ; Colorless, odorless gas. [Note: Shipped as a nonliquefied or liquefied compressed gas.]
• 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

Products:

• Pd
  • Names: Palladium , Pd , Element 46 , 46Pd
• CO₂
  • Names: Carbon dioxide , {{plainlist| , CO2 ... show moreCarbonic acid gas , Dry ice , [CO2] , Carbonic anhydride , R-744 , E-290 , E 290 , E290 , Carbonic acid anhydride , Carbon-12 dioxide , Methanedione , Carbon oxide , CO₂ , [Note: Normal constituent of air (about 300 ppm)]. show less
  • Appearance: Colorless gas ; Odourless colourless compressed liquefied gas ; Colorless, odorless gas. [Note: Shipped as a liquefied compressed gas. Solid form is utilized as dry ice.]
• 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.]