Consider an electrochemical cell constructed from the following half cells, linked by a KCl salt bridge.
- a Fe electrode in 1.0 M FeCl2 solution
- a Sn electrode in 1.0 M Sn(NO3)2 solution
When the cell is running spontaneously, which choice includes only true statements and no false ones?
◦ The tin electrode loses mass and the tin electrode is the cathode.
◦ The tin electrode gains mass and the tin electrode is the cathode.
◦ The iron electrode gains mass and the iron electrode is the anode.
◦ The iron electrode loses mass and the iron electrode is the cathode.
◦ The iron electrode gains mass and the iron electrode is the cathode.