2 CH3COOH + CaCO3 → CO2 + H2O + Ca(CH3COO)2

This is an acid-base reaction (neutralization): CH3COOH is an acid, CaCO3 is a base.

Reactants:

• CH3COOH – Acetic acid , Ethanoic acid
  • Other names: Vinegar (when dilute); Hydrogen acetate; Methanecarboxylic acid , Methanecarboxylic acid , CH3-COOH ... show moreAcetic acid, glacial , HOAc , Vinegar , Essigsäure , Glacial acetic acid , Ethanoate , Acide acétique , Ethylic acid , Ethoic acid , Aceticum acidum , Ethanoat , E260 , CH3COOH , Acetic acid (aqueous) , [Note: Can be found in concentrations of 5-8% in vinegar.] show less
  • Appearance: Colourless liquid ; Colourless liquid with pungent odour ; Colorless liquid or crystals with a sour, vinegar-like odor. [Note: Pure compound is a solid below 62°F. Often used in an aqueous solution.]
• CaCO3 – Calcium carbonate
  • Other names: Calcite; aragonite; chalk; Lime (material); Limestone; marble; oyster; pearl; , Calcium salt of carbonic acid , Children's Mylanta Upset Stomach Relief ... show moreCarbonato de calcio , Carbonate de calcium , Carbonic acid calcium salt (1:1) , Precipitated Calcium Carbonate , Mylanta Soothing Lozenges , Purecal , Albacar , CaCO3 , Calcium carbonate (1:1) , Kohlensaurer kalk , E 170 , Chooz , Kalziumkarbonat , Calciumcarbonat , Cal-Sup , Calcium;carbonate , Calci chew vitamine , Carbonic acid, calcium salt show less
  • Appearance: Fine white powder; chalky taste ; White powder or pellets

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.]
• 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
• Ca(CH3COO)2 – Calcium acetate
  • Other names: Acetate of lime , Calcium ethanoate , Calcium diacetate ... show moreEliphos , Phoslo , Phoslo Gelcaps , Phoslyra , Lime acetate , Acetate OF lime , Lime pyrolignite , Brown acetate of lime , Gray acetate of lime , Calcium(II) acetate , Ca(OAC)2 , Acetic acid, calcium salt show less
  • Appearance: White solid | hygroscopic ; White-to-brown or grey crystals with characteristic odour