I am working out a reaction and I was wondering if someone could tell me which oxidation state of chromium should be used? Cr(s) + AgNO3(aq) -> Cr(NO3)?(aq) + Ag(s) Do I use Chromium (II) Nitrate or Chromium (III) Nitrate? How do I know which one to use? If anyone could help explain which oxidation state of Chromium is correct, I would really appreciate it! Thanks!!