character: Professor Proton
topic: Heat Transfer in Reactions
grade: 9
subject: Chemistry
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character: Professor Proton
topic: Thermodynamics
grade: 9
subject: Chemistry
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character: Professor Proton
topic: Endothermic and Exothermic Reactions
grade: 9
subject: Chemistry
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character: Professor Proton
topic: Phase Changes and Energy Transfer
grade: 9
subject: Chemistry
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