Energy and Chemical Reactions

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Across
  1. 2. contain more bond energy in in an exothermic reaction
  2. 4. contain more bond energy in an endothermic reaction
  3. 5. does not follow the rule of conservation
  4. 8. most important endothermic reaction
  5. 11. are all exothermic chemical reactions
  6. 13. a system where nothing may enter or leave the system
Down
  1. 1. a system where materials can floe in and out freely
  2. 2. most important exothermic reaction
  3. 3. an example would be iron rusting
  4. 6. energy needed to start a reaction
  5. 7. energy is stored
  6. 9. energy is released
  7. 10. can be released as a form of energy in an exothermic reaction
  8. 12. this is what the surroundings become in an endothermic reaction