character: Chris
topic: Energy Changes in Chemical Reactions
grade: 9
subject: Chemistry
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character: Emily
topic: Endothermic and Exothermic Reactions
grade: 9
subject: Chemistry
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character: Jason
topic: Activation Energy and Catalysts
grade: 9
subject: Chemistry
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character: Sophia
topic: Thermodynamics in Chemistry
grade: 9
subject: Chemistry
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