character: Ms. Sarah Lee
topic: Neutralization Reactions
grade: 9
subject: Chemistry
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character: Mr. John Smith
topic: Acid-Base Reactions
grade: 9
subject: Chemistry
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character: Dr. Emily Johnson
topic: Chemical Reactions in Everyday Life
grade: 9
subject: Chemistry
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character: Ms. Amanda Chen
topic: Types of Chemical Reactions
grade: 9
subject: Chemistry
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