Exothermic and Endothermic reactions
- Created by: Caitlyn Grayston
- Created on: 19-09-13 18:55
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Breaking and making bonds:
Bonds hold all the molecules together. Bonds have to be BROKEN in the reactions first. This takes IN energy. Bonds have to be MADE in the products. This gives OUT energy.
2 H - H
1 O - O ---> 432 + 432 + 495 = 1359
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