Sngf (hoarhak)

Sngf (酸 acid) si cidkhoarn hoarhabbut, ciaf ee hoarhabbut na iongkae ti zuie laixbin, øe safngsefng pie sunzuie khaq koaan ee zuysox lizuo oaqliong, iah tiøqsi pie 7.0 khaq søex ee pH. Sngf ti hoarhagsiong ee texnggi zwiaux u Brønsted-Lowry, Arrhenius, kab Lewis 3-khoarn.