character: Covalent Cathy
topic: Molecular Structures
grade: 9
subject: Chemistry
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character: Bonding Bob
topic: Types of Chemical Bonds
grade: 9
subject: Chemistry
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character: Polymer Patty
topic: Polymers and Their Structures
grade: 9
subject: Chemistry
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character: Atomic Andy
topic: Atomic Structure and Bonding
grade: 9
subject: Chemistry
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