Chapter 2 Biology

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Across
  1. 4. The average kinetic energy of molecules, regardless of volume.
  2. 7. Usually equals the number of electrons required to complete the atom;s outermost
  3. 8. The substance that is dissolved.
  4. 9. A substance that has an affinity for water.
  5. 11. The clinging of one substance to another.
  6. 14. (1,000 cal) is the quantity of heat required to raise the temperature of 1 kilogram of water by 1 degree C.
  7. 16. An electron has been gained.
  8. 17. Starting materials in a chemical reaction
  9. 18. Composed of 2 or more atoms held together by covalent bonds.
  10. 19. The amount of heat it takes to raise the temperature of 1 g of water by 1degree C.
Down
  1. 1. The dissolving agent of a solution.
  2. 2. Same number of protons, different number of neutrons.
  3. 3. Thermal energy in transfer from one body of matter to another.
  4. 5. The attraction of a particular atom for the electrons of a covalent bond.
  5. 6. A charged atom (or molecule)
  6. 10. A liquid that is a completely homogeneous mixture of 2 or more substances.
  7. 12. The elements or compounds produced by a chemical reaction.
  8. 13. An electron has been lost.
  9. 15. Substances that repel water.
  10. 20. The capacity to cause change by doing work.