Chemistry: Exothermic and Endothermic Reactions and Changes of State

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Exothermic Reaction: 

  • During the reaction a red glow is seen. 
  • This means that heat is being given out. 
  • Chemical energy ===> thermal energy. 

Endothermic Reaction: 

  • a reaction that takes in heat.
  • Feels cold, drop in temperature. 
  • Thermal energy ===> chemical energy. 



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