character: Mr. James Wilson
topic: Introduction to Acids and Bases
grade: 9
subject: Chemistry
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character: Dr. Emily Carter
topic: Properties of Acids and Bases
grade: 9
subject: Chemistry
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character: Ms. Sarah Lee
topic: Neutralization Reactions
grade: 9
subject: Chemistry
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character: Mr. David Kim
topic: pH Scale and its Significance
grade: 9
subject: Chemistry
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