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6.4 Chemical cells and fuel cells
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How a chemical cell produces voltage

How a chemical cell produces voltage

Magnesium-copper voltaic cell showing the magnesium anode, copper cathode, electrolyte solutions, salt bridge, voltmeter, and electron flow from magnesium to copper.

A chemical cell uses two different metals dipped into an electrolyte. The electrolyte contains mobile ions, while the metals provide electrodes connected through an external circuit.

6.4 Chemical cells and fuel cells Lesson

  1. GCSE
  2. /Chemistry
  3. /6.4 Chemical cells and fuel cells

Step-by-step lessons on Edexcel GCSE Chemistry 6.4 Chemical cells and fuel cells, covering 6.4.1 Chemical cells and fuel cells. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.

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