character: Professor Proton
topic: Energy Changes during Chemical Reactions
grade: 9
subject: Chemistry
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character: Bill Nye
topic: Thermodynamics in Chemical Reactions
grade: 9
subject: Chemistry
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character: Doc Brown
topic: Exothermic vs Endothermic Reactions
grade: 9
subject: Chemistry
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character: Bill Nye
topic: The Law of Conservation of Energy
grade: 9
subject: Chemistry
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