character: Mr. Johnson
topic: Factors Affecting Chemical Reactions
grade: 9
subject: Chemistry
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character: Ms. Smith
topic: Rate of Reaction and Temperature
grade: 9
subject: Chemistry
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character: Dr. Brown
topic: Concentration and Reaction Rates
grade: 9
subject: Chemistry
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character: Mrs. Lee
topic: Catalysts and Their Effects on Reactions
grade: 9
subject: Chemistry
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