2 CH₃COOH + Mg(OH)₂ → (CH₃COO)₂Mg + 2 H₂O

This is an acid-base reaction (neutralization): CH₃COOH is an acid, Mg(OH)₂ 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.]
• Mg(OH)₂ – Magnesium hydroxide
  • Other names: Magnesium dihydroxide , Milk of magnesia , Magnesia, [Milk of] ... show moreMg(OH)2 , Magnesium hydrate show less
  • Appearance: White solid

Products:

• (CH₃COO)₂Mg
• 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