Consider a galvanic cell with a beaker of Chromium(III) nitrate Cr(NO3)3 and a beaker of Copper(II) nitrate Cu(NO3)2. The Chromium(III) nitrate beaker contains a strip of chromium, and the Copper(II) nitrate cell contains a strip of copper. A wire runs between the strips. The reaction that occurs is as follows: 2Cr(s) + 3Cu2+(aq) → 2Cr3+(aq) + 3Cu(s) In three to five sentences, list which electrode is the anode and which is the cathode and the half reactions that occur at each electrodE

Answer 1

In this galvanic cell, the strip of chromium (Cr) is the anode, while the strip of copper (Cu) is the cathode. At the anode (Cr strip), the half-reaction occurring is the oxidation of Cr(s) to Cr3+(aq): 2 Cr(s) → 2 Cr3+(aq) + 6 e-. At the cathode (Cu strip), the half-reaction occurring is the reduction of Cu2+(aq) to Cu(s): 3 Cu2+(aq) + 6 e- → 3 Cu(s).