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ARC-Easy / Mercury_7024780 / In a laboratory procedure, students added sodium hydroxide crystals to a beaker…

Problem

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question

In a laboratory procedure, students added sodium hydroxide crystals to a beaker of water and allowed the resulting solution to cool. Based on this information, which type of chemical process most likely occurred?

choices

  • electrical
  • energetic
  • exothermic
  • endothermic

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Source and history

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