Answers to Figure Legend Questions

  1. 1 Potassium gives up an electron.
  2. 6 By sharing four pairs of electrons, the carbon and the two oxygens each have eight valence electrons, fulfilling the octet rule.
  3. 8 Since water molecules cling together, they vibrate less freely than do molecules of a nonpolar liquid, and it requires more heat to get water to boil.
  4. 13 Decomposition.
  5. 26 No, the amount of energy released (the difference in energy content between the reactants and products) is the same with or without an enzyme.

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