character: Mr. Robert Brown
topic: Energy Changes During Chemical Reactions
grade: 12
subject: Chemistry
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character: Ms. Angela Smith
topic: Thermodynamics and Chemical Reactions
grade: 12
subject: Chemistry
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character: Dr. Emily Tran
topic: Enthalpy Changes in Reactions
grade: 12
subject: Chemistry
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character: Mr. David Lee
topic: Exothermic and Endothermic Processes
grade: 12
subject: Chemistry
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