character: Dr. Lee
topic: The Nature of Energy in Chemical Reactions
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Types of Chemical Energy
grade: 9
subject: Chemistry
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character: Mr. Smith
topic: Thermodynamics in Chemistry
grade: 9
subject: Chemistry
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character: Prof. Garcia
topic: Energy Changes in Endothermic and Exothermic Reactions
grade: 9
subject: Chemistry
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