Problem: Determine whether each of the following is exothermic or endothermic.dry ice evaporating,a sparkler burning, andthe reaction that occurs in a chemical cold pack often used to ice athletic injuries.

FREE Expert Solution

Recall that:

Exothermic reactions: lose energy and involve bonds breaking; ΔH is negative

Endothermic reactions: gain energy and involve bonds forming; ΔH is positive


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Problem Details
Determine whether each of the following is exothermic or endothermic.
  1. dry ice evaporating,
  2. a sparkler burning, and
  3. the reaction that occurs in a chemical cold pack often used to ice athletic injuries.

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