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5.2 Chemical cells and fuel cells

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Question 2

A hydrogen fuel cell supplying electricity to an isolated weather station has an alkaline electrolyte containing hydroxide ions, OH−\text{OH}^-OH−.

Complete the half equation for the reaction at the electrode where hydrogen reacts.

H2+…OH−→…H2O+…e−\text{H}_2 + \ldots\text{OH}^- \rightarrow \ldots\text{H}_2\text{O} + \ldots\text{e}^-H2​+…OH−→…H2​O+…e−

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Markscheme

5.2 Chemical cells and fuel cells Questions

  1. GCSE
  2. /Chemistry
  3. /5.2 Chemical cells and fuel cells

90 exam-style questions on AQA GCSE Chemistry 5.2 Chemical cells and fuel cells, covering 5.2.1 Cells and batteries, 5.2.2a Fuel cells, and 5.2.2b Half equations for hydrogen fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.

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