character: Mr. Smith
topic: Types of Solutions
grade: 9
subject: Chemistry
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character: Mr. Johnson
topic: Acids and Bases in Solutions
grade: 9
subject: Chemistry
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character: Ms. Thompson
topic: Concentration of Solutions
grade: 9
subject: Chemistry
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character: Mrs. Davis
topic: Solubility and Factors Affecting Solutions
grade: 9
subject: Chemistry
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