character: Professor Dalton
topic: The Law of Conservation of Mass
grade: 11
subject: Chemistry
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character: Antoine Lavoisier
topic: Historical Contributions to the Conservation of Mass
grade: 11
subject: Chemistry
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character: John Dalton
topic: Atomic Theory and Mass Conservation
grade: 11
subject: Chemistry
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character: Marie Curie
topic: Mass and Energy in Nuclear Reactions
grade: 11
subject: Chemistry
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