KOH+CH3COOH---???

KOH(aq) + CH3CHOOH(aq) → CH3CHOO-K+(aq) + H2O(l)

CH3COOH ionizes to form CH3COO- + hydrogen ions reversibly in water

hence,

CH3COOH + KOH --> CH3COOK + H20

This is a neutalization process. Acid reacts with an alkali to form water.
Hydrogen ions are displaced out by potassium ions.

KOH 會放 OH-
CH3COOH 會放 H+

(OH-) + (H+) ---> H2O
中和反應

所以
KOH(aq) + CH3COOH (aq)------> CH3COOK(aq) + H2O (l)

PS: CH3COOK係離子化合物( ionic compound )