character: Sir Humphry Davy
topic: Electrochemistry and his contributions
grade: 9
subject: Chemistry
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character: Michael Faraday
topic: Electrochemistry advancements following Davy's work
grade: 9
subject: Chemistry
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character: John Frederic Daniell
topic: Electrochemical cell development
grade: 9
subject: Chemistry
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character: William Grove
topic: Early fuel cells and their electrochemical principles
grade: 9
subject: Chemistry
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