character: Dr. Lee
topic: Reactivity and Corrosion of Metals
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Oxidation-Reduction Reactions
grade: 9
subject: Chemistry
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character: Mr. Smith
topic: Properties of Metals
grade: 9
subject: Chemistry
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character: Dr. Kim
topic: Electrochemistry Basics
grade: 9
subject: Chemistry
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