Chapter 2 Crossword- Callie Bright

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Across
  1. 2. a class of nonpolar organic that are insoluble in water and are used for energy storage and cell membranes in living things.
  2. 4. a class of organic compounds that serve as the building blocks of protein
  3. 6. a substance that is present before a chemical reaction and takes part in it, usually shown on the left-hand side of a chemical equation
  4. 10. a class of simple organic compounds important in living things as a source of both energy and structure
  5. 12. the ability to get things done.
  6. 14. a change in the substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
  7. 15. the attraction of particles in one substance for particles in a different substance
  8. 17. a naturally occurring catalyst, usually a protein
  9. 18. the substances formed during a chemical reaction, usually indicated indicated on the right-hand side of a chemical equation
  10. 19. pure substance made of only one kind of substance
Down
  1. 1. a pure substance made from two or more electrons that are chemically combninea
  2. 3. a substance that changes the rate of a chemical reaction but its not itself used up or affected by the reaction
  3. 5. a class of of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA
  4. 7. a change in substance that does not change the identity of the substance
  5. 8. an organic compound comprised of the elements carbon, hydrogen, and oxygen; includes sugars, starch and cellulose
  6. 9. a measurement of the average speed of the particles within a substance
  7. 11. the basic building blocks of matter
  8. 13. an attraction between two atoms as a result of sharing or transferring valence electrons
  9. 14. the attraction between like particles within polar substances
  10. 16. the tendency of energy to disperse and become less available to do work