Natural and organic compounds have practical teams, and several organic and natural anions are based over the carboxylate group. This movie can help you use that to recollect the formula of polyatomic ions like acetate, phthlate and oxylate. Molten KOH is used to displace halides along with other leaving groups. https://chancebayww.blog-kids.com/30561564/getting-my-potassium-cyanide-used-for-to-work