Chemistry · Grades 10–12
Electrochemistry: electrodes and potentials · Revision sheet
Keep oxidation and reduction identities separate from cell-specific signs.
Learn the idea
Electrodes
Oxidation occurs at the anode and reduction at the cathode in both galvanic and electrolytic cells.
Cell types
Electrode signs differ between galvanic and electrolytic operation; do not memorize one sign without context.
Potential
Using reduction potentials, E°cell = E°cathode − E°anode.
Charge flow
Electrons travel in the external conductor; ionic motion carries charge through electrolyte.
Explain without looking
- If a half-reaction is multiplied by two, what happens to its listed standard reduction potential?
- Explain why a positive calculated standard cell potential is not a guarantee of a large measured current.
Further reading and review references
These are reference links, not copied exercises, institutional endorsement or proof of independent review.
Independent educational review required. Grade bands are approximate; these are not officially aligned curricula.