I. Write the half-reactions for this reaction, indicating the oxidation half-reaction and the reduction half-reaction. (1 point) Oxidation half-reaction: Cr3+→+6Cr2O2−7+3e−
ii. Which metal is the anode, and which is the cathode? (1 point)
iii. Calculate the standard potential (voltage) of the cell. (1 point)
iv. What kind of electrochemical cell is this? Explain your answer. (1 point)
v. Write the standard cell notation for this electrochemical cell. (1 point)
vi. Which of the two metals — Ag(s) or Ni(s) — is a stronger reducing agent? Explain your answer. (1 point)