character: Acid-Base Indicator
topic: Indicators, The Role of Indicators in Identifying Acids and Bases
grade: 9
subject: Chemistry
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character: pH Scale
topic: Understanding the pH Scale and Its Relation to Acids and Bases
grade: 9
subject: Chemistry
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character: Litmus Paper
topic: The Use of Litmus Paper in Identifying Acids and Bases
grade: 9
subject: Chemistry
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character: Phenolphthalein
topic: Using Phenolphthalein to Identify Acidic and Basic Solutions
grade: 9
subject: Chemistry
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