Question

Balance the following redox equation, identifying the element oxidized and the element reduced. Show all of the work used to solve the problem.

Ag + CN- + O2 yields Ag(CN)2- + H2O

Answer 1

first assign oxidation states to all the species

Answer 2

if you're unsure how to do that read what i wrote here http://openstudy.com/study#/updates/51e824cee4b0d999840e356c