C5- Energy changes.

• what is a exothermic reactions

  energy transferred from reactions to surrounding
• what happens during exothermic reaction

  temperature from surroundings increases
• what is a endothermic reaction

  energy is being taking in from surroundings
• example of exothermic reaction

  combustion
• what happens during endothermic reaction

  temperature of surrounding decreases
• example of endothermic reaction

  thermal decomposition
• what does breaking bonds require

  energy
• what does making bonds do

  release energy (exothermic)