character: Dr. Lee
topic: pH Levels and Their Importance
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Acid-Base Reactions
grade: 9
subject: Chemistry
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character: Mr. Smith
topic: The Role of Buffers in Biological Systems
grade: 9
subject: Chemistry
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character: Dr. Kim
topic: Indicators and Their Use in pH Measurement
grade: 9
subject: Chemistry
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