character: Mr. Alan Perez
topic: Energy Diagrams in Chemical Reactions
grade: 11
subject: Chemistry
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character: Ms. Sarah Johnson
topic: Enthalpy Changes in Reactions
grade: 11
subject: Chemistry
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character: Dr. Emily Chang
topic: Activation Energy and Reaction Rates
grade: 11
subject: Chemistry
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character: Mr. David Lewis
topic: Thermodynamics in Chemical Processes
grade: 11
subject: Chemistry
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