character: Ms. Sarah Johnson
topic: Introduction to Reaction Kinetics
grade: 9
subject: Chemistry
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character: Mr. Alan Carter
topic: Factors Affecting Reaction Rates
grade: 9
subject: Chemistry
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character: Dr. Emily Chen
topic: The Collision Theory of Chemical Reactions
grade: 9
subject: Chemistry
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character: Mrs. Laura Williams
topic: Understanding Activation Energy
grade: 9
subject: Chemistry
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