Schematic cells
The galvanic cells shown in the pictures can also be represented by the schematic notation shown above the pictures.
Note that each cell contains two electrodes. The electrodes each contain an oxidant, a reductant and a solid conductor.
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*Note: In the electrodes of the cell at the right, the oxidant and the reductant of the couple are soluble. There is no convention for the order in which they are written. Thus a schematic cell involving a chlorine electrode could have Cl2(aq), Cl–(aq) or Cl–(aq), Cl2(aq).
Note that each cell contains two electrodes. The electrodes each contain an oxidant, a reductant and a solid conductor.
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Pt(s)|Fe2+(aq), Fe3+(aq)||Cl2(aq), Cl–(aq)|Pt(s)  |
| || represents the salt bridge. Negative electrode at left Positive electrode at right | represents phase boundary Comma separates soluble species* Conductors at outside |
Sn(s)|Sn2+(aq)||Cu2+(aq)|Cu(s)  |
*Note: In the electrodes of the cell at the right, the oxidant and the reductant of the couple are soluble. There is no convention for the order in which they are written. Thus a schematic cell involving a chlorine electrode could have Cl2(aq), Cl–(aq) or Cl–(aq), Cl2(aq).