3 Na₂C₂O₄ (aq) + KBrO₃ (aq) + 3 H₂O (l) → 6 CO₂ (g) + KBr (aq) + 6 NaOH (aq)

This is an oxidation-reduction (redox) reaction:

KBrO₃ is an oxidizing agent, Na₂C₂O₄ is a reducing agent.

Reactants:

• Na₂C₂O₄ – Sodium ethanedioate
  • Other names: Sodium oxalate , Oxalic acid , Disodium salt ... show moreDisodium oxalate , Ethanedioic acid, disodium salt , Oxalic acid, disodium salt show less
• KBrO₃ – Potassium bromate
  • Other names: Potassium bromate(V) , Bromic acid , Potassium salt ... show moreBromic acid, potassium salt , Potassium trioxobromate , E924 show less
  • Appearance: White crystalline powder ; White crystals or powder
• 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:

• 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.]
• KBr
  • Names: Potassium bromide , KBr , Kaliumbromid
  • Appearance: White solid
• NaOH
  • Names: Sodium hydroxide , Caustic soda , Lye ... show moreSoda lye , Sodium hydrate , NaOH , White caustic , Lye [Sodium hydroxide] show less
  • Appearance: White, waxy, opaque crystals ; White hygroscopic solid in various forms ; Colorless to white, odorless solid (flakes, beads, granular form).