Anode
Definition
The anode is the electrode where oxidation occurs in a galvanic cell. It is typically the negative terminal in such cells.
5 Must Know Facts For Your Next Test
- In a galvanic cell, electrons flow away from the anode towards the cathode.
- The anode undergoes oxidation, which means it loses electrons.
- It is often made of a metal that easily oxidizes, such as zinc in a zinc-copper cell.
- In the external circuit of a galvanic cell, current flows from the cathode to the anode.
- The anode can be identified by observing which electrode decreases in mass.
Review Questions
- What process occurs at the anode of a galvanic cell?
- Why is the anode negatively charged in a galvanic cell?
- How can you identify the anode in a simple galvanic cell setup?
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Related terms
Cathode: The electrode where reduction occurs and is typically the positive terminal in a galvanic cell.
Oxidation: A chemical reaction involving the loss of electrons by a molecule, atom, or ion.
Electrode: A conductor through which electricity enters or leaves an electrochemical cell.
