CrCl₃ + KMnO₄ + 2 Na₂CO₃ → Na₂CrO₄ + KCl + 2 NaCl + MnO₂ + 2 CO₂

This is an oxidation-reduction (redox) reaction:

KMnO₄ is an oxidizing agent, CrCl₃ is a reducing agent.

Reactants:

• CrCl₃ – Chromium(III) chloride , Chromium trichloride
  • Other names: Chromic chloride , Chromium(iii) chloride (anhydrous) , Chromium(3+) trichloride ... show moreCrCl3 , Anhydrous chromium(III) chloride , Chromium chloride , Puratronic chromium chloride , Trichlorochromium , Chromic chloride anhydrous show less
  • Appearance: Purple (anhydrous), dark green (hexahydrate) ; Violet crystals
• KMnO₄ – Potassium manganate(VII)
  • Other names: Potassium permanganate , Chameleon mineral , Condy's crystals ... show morePermanganate of potash Hypermangan , Permanganic acid potassium salt show less
  • Appearance: Purplish-bronze-gray needles | magenta–rose in solution ; Dark purple crystals
• Na₂CO₃ – Sodium carbonate
  • Other names: Soda ash , Washing soda , Soda crystals ... show moreSodium carbonate (anhydrous) , Na2CO3 , Disodium carbonate , Natriumkarbonat , Carbonic acid sodium salt (1:2) , Anhydrous sodium carbonate , Carbonic acid, disodium salt , Sodium carbonate, anhydrous , Soda-ash , Natrum carbonicum , Sodium carbonate anhydrous , Sodium salt of carbonic acid , Carbonic acid disodium salt show less
  • Appearance: White solid, hygroscopic ; White hygroscopic powder

Products:

• Na₂CrO₄ – Sodium chromate
  • Other names: Chromic acid , (Na2CrO4) , Disodium salt ... show moreChromium disodium oxide , Rachromate , H2CrO4 , Chromic acid, disodium salt , Disodium chromate , Chromiumsodium oxide , Sodium chromate(VI) , Disodium chromate (VI) , Disodium chromium tetraoxide show less
  • Appearance: Yellow crystals ; Yellow hygroscopic crystals
• KCl
  • Names: Potassium chloride , Sylvite , Muriate of potash ... show moreKlor-Con M15 , K-Lease , Klor-Con 8 , K+10 , K+8 , Klor-Con M10 , Micro-K 10 , Kato , Kaon Cl-10 , Kaon-Cl , Kaon Cl , Micro-K , Klor-Con 10Meq , Klor-Con 10 , Micro-K Ls , K-dur , Klor-Con , Klor-Con M20 , Slow-K , Ten-K , Klotrix , [KCl] , Kaliumchlorid , Chloride of potash , Kaon-CL 10 , Klor-CON , KCl , Monopotassium chloride , K-Tab , Chlorid draselny , Potassium Chloride show less
  • Appearance: White crystalline solid ; Colourless hygroscopic crystals
• NaCl – Sodium chloride
  • Other names: {{unbulleted list , Salt , Table salt ... show moreCommon salt , NaCl , Broncho saline show less
  • Appearance: Colorless cubic crystals
• MnO₂ – Manganese oxide , Manganese(IV) oxide
  • Other names: Manganese dioxide , Pyrolusite , Hyperoxide of manganese ... show moreBlack oxide of manganese , Manganic oxide , MnO2 , MnO₂ , Manganese(IV)oxide , Manganese peroxide show less
  • Appearance: Brown-black solid ; Black-to-brown powder
• 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.]