character: Dr. Smith
topic: Enzymes and Reaction Rates
grade: 9
subject: Chemistry
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character: Mr. Johnson
topic: Catalysts in Chemical Reactions
grade: 9
subject: Chemistry
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character: Ms. Lee
topic: Factors Affecting Reaction Rates
grade: 9
subject: Chemistry
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character: Dr. Brown
topic: Biochemical Reactions and Enzyme Activity
grade: 9
subject: Chemistry
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