character: Mrs. Johnson
topic: Understanding pH Indicators in Chemistry
grade: 12
subject: Chemistry
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character: Mr. Smith
topic: Acid-Base Reactions in Everyday Life
grade: 12
subject: Chemistry
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character: Dr. Lee
topic: The Importance of pH in Biological Systems
grade: 12
subject: Chemistry
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character: Ms. Thompson
topic: Lab Techniques for Measuring pH
grade: 12
subject: Chemistry
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