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Hand-warmer evidence. In Energy transfer during exothermic and endothermic reactions, a student feels the pack get warmer. Which conclusion best supports calculation?.
- A.Hand-warmer evidence: Energy is transferred to the surroundings, so the temperature rises.
- B.Energy is taken from the surroundings, so the pack must be endothermic.
- C.Activation energy is the same as the total energy transferred.
- D.The observation proves the reaction is a fuel cell.
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