character: Ms. Patel
topic: Energy Changes in Chemical Reactions
grade: 9
subject: Chemistry
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character: Mr. Johnson
topic: Types of Chemical Reactions
grade: 9
subject: Chemistry
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character: Dr. Smith
topic: The Law of Conservation of Energy
grade: 9
subject: Chemistry
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character: Ms. Lee
topic: Endothermic and Exothermic Reactions
grade: 9
subject: Chemistry
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