character: Acid-Base Indicator
topic: pH Indicators in Chemistry
grade: 9
subject: Chemistry
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character: Litmus Test
topic: Color Changes of Litmus in Acids and Bases
grade: 9
subject: Chemistry
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character: Phenolphthalein
topic: Phenolphthalein Color Change in Acid-Base Reactions
grade: 9
subject: Chemistry
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character: Universal Indicator
topic: Interpretation of pH Colors Using Universal Indicator
grade: 9
subject: Chemistry
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