character: Calcium
topic: Properties of Calcium Compounds
grade: 9
subject: Chemistry
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character: Calcium Cation (Ca2+)
topic: Role of Calcium in Biological Systems
grade: 9
subject: Chemistry
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character: Calcium
topic: Chemical Reactions Involving Calcium
grade: 9
subject: Chemistry
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character: Calcium Compounds
topic: Applications of Calcium in Industry
grade: 9
subject: Chemistry
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