character: Mr. Smith
topic: Thermodynamics in Chemistry
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Energy Changes in Chemical Reactions
grade: 9
subject: Chemistry
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character: Dr. Liu
topic: Principles of Heat Transfer
grade: 9
subject: Chemistry
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character: Mr. Anderson
topic: The Laws of Thermodynamics
grade: 9
subject: Chemistry
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