character: Mr. David Smith
topic: Enthalpy and Hess's Law
grade: 12
subject: Chemistry
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character: Dr. Emily Johnson
topic: Thermochemistry
grade: 12
subject: Chemistry
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character: Ms. Sarah Lee
topic: Heat Transfer and Thermodynamic Principles
grade: 12
subject: Chemistry
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character: Mr. James Brown
topic: Calculating Enthalpy Changes
grade: 12
subject: Chemistry
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