character: Dr. Lee
topic: Factors Affecting Chemical Reactions
grade: 9
subject: Chemistry
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character: Professor Smith
topic: Catalysts in Chemical Reactions
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Temperature and Reaction Rates
grade: 9
subject: Chemistry
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character: Mr. Davis
topic: Concentration and Chemical Reactions
grade: 9
subject: Chemistry
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