Question

name the compound hc₂h₃o₂(aq).
acetous acid
acetic acid
hydroacetic acid
hydroacetous acid

Explanation:

• Acetous acid is not a standard name for \(HC_{2}H_{3}O_{2}(aq)\).
• Hydroacetic acid and hydroacetous acid are incorrect as the naming of \(HC_{2}H_{3}O_{2}(aq)\) does not follow the "hydro -... - ic/ous" naming pattern for binary acids (which is for acids like \(HCl\) (hydrochloric acid)).
• \(HC_{2}H_{3}O_{2}(aq)\) is the chemical formula for acetic acid. The acetate ion (\(C_{2}H_{3}O_{2}^{-}\)) combined with a hydrogen ion (\(H^{+}\)) forms acetic acid.

Answer:

acetic acid