Electrode potentials
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From half-equations to a working cell

From half-equations to a working cell

Labelled zinc-copper electrochemical cell showing zinc anode on the left, copper cathode on the right, salt bridge, voltmeter, and electron flow from zinc to copper

A redox reaction involves electron transfer. In a zinc-copper cell, zinc is oxidised and copper(II) ions are reduced, so electrons flow through the wire from zinc to copper.

Electrode potentials Lesson

  1. A Level
  2. /Chemistry
  3. /Electrode potentials