Galvanic Cells

If we have two reactions going, one that PRODUCES electrons and another that CONSUMES electrons, we can get the electrons to travel from one beaker to the other through a wire. This is the basis of the first chemically-made electricity, the galvanic cell:

Oxidation occurs at the “Anode” and reduction occurs at the “Cathode”

For example, at the anode we have an oxidation (loss of electrons):
Picture
and at the cathode we have a reduction (gain of electrons):
Picture
This picture is from a page on chem1.com
and so, the total reaction is the sum of these two:
Picture
This reaction would be written as:
Picture