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12 cards from this deck
Opposing
Endothermic
Transfers energy to surroundings, usually as heat
More energy released forming bonds than absorbed breaking them
Absorbs energy from surroundings
More energy needed to break bonds than released forming them
Exothermic
More energy released forming H-I bonds than breaking H-H & I-I
More energy needed breaking H-I bonds than released forming H-H & I-I
Always opposite
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