Biology chapter 2.4 crossword

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Across
  1. 2. a chemical reaction absorbs more energy than it releases
  2. 5. the amount of the energy that needs to be absorbs for a chemical reaction to start
  3. 6. the process that change substances into different substances by breaking and forming chemical bonds.
  4. 8. the substances made by a chemical reaction
Down
  1. 1. a chemical reaction that release more energy than it absorbs.
  2. 3. the state when both the reactants and products are made at the same rate
  3. 4. the amount of energy that will break a bond between two atoms
  4. 7. the substances that changed during a chemical reaction