character: Dr. Johnson
topic: Chemical Reactions and Energy
grade: 12
subject: Chemistry
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character: Dr. Smith
topic: Thermodynamics in Chemical Reactions
grade: 12
subject: Chemistry
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character: Ms. Brown
topic: Endothermic vs Exothermic Reactions
grade: 12
subject: Chemistry
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character: Mr. Lee
topic: Activation Energy and Reaction Rate
grade: 12
subject: Chemistry
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