character: Dr. Emily Carter
topic: Understanding Chemical Reactions
grade: 9
subject: Chemistry
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character: Ms. Lisa Nguyen
topic: Balancing Chemical Equations
grade: 9
subject: Chemistry
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character: Mr. James Wilson
topic: Introduction to Acids and Bases
grade: 9
subject: Chemistry
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character: Dr. Sarah Mitchell
topic: Energy Changes in Chemical Reactions
grade: 9
subject: Chemistry
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