character: Mr. Johnson
topic: Understanding the pH Scale: Characteristics of Acids and Bases
grade: 12
subject: Chemistry
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character: Ms. Smith
topic: Acids and Bases: Properties and Reactions
grade: 12
subject: Chemistry
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character: Dr. Lee
topic: The Role of pH in Biological Systems
grade: 12
subject: Chemistry
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character: Mr. Brown
topic: Calculating pH: Practical Applications in Chemistry
grade: 12
subject: Chemistry
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