[Questão Comentada] - ENEM - Tema: CHAPAS DE RAIOS X E RECUPERAÇÃO DA PRATA

👉 RECEIVE FOR FREE - TIPS, SUMMARIES AND MUCH MORE: 🚨 https://qema.me/resumos-gratis 🚨 (Enem 2014) The development of X-ray plates generates a solution that contains silver ions in the form of Ag(S2O3)2 3- To avoid the discharge of this metal into the environment, the recovery of metallic silver can be done by electrochemically treating this solution with a suitable species. The table shows reduction half-reactions of some metal ions. Of the species presented, the one suitable for this recovery is