chapter 2 vocab

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Across
  1. 1. Deoxyribouncleic acid
  2. 5. A pure substance made of only one kind of atom
  3. 6. Compounds that form hydrogen ions when dissolved into water
  4. 8. The energy needed to start a chemical reaction
  5. 12. The hydrogen bonds between water molecules
  6. 13. Smallest unit of life
  7. 15. A substance made of the joined atoms of two or more elements
  8. 17. Usually a large molecule formed by linking smaller molecules
  9. 18. The building blocks of protein
  10. 19. An atom or molecule that has gained or lost one or more electron
  11. 20. Made of three parts: sugar, a base, and a phosphate
  12. 21. on which an enzyme acts during a chemical reaction
  13. 24. The ability to move or change matter
  14. 25. An attraction between different substances
Down
  1. 2. A long chain of smaller molecules
  2. 3. Compounds that reduce the concentration of hydroxide ions
  3. 4. Non polar molecules that are not soluble or mostly insoluble in water
  4. 7. The building blocks of carbohydrates
  5. 9. Organic compounds made of carbon, hydrogen, and oxygen atoms
  6. 10. A large protein with fold from pockets
  7. 11. Riboncleic acid
  8. 14. Two or more atoms that share electrons to form a molecule
  9. 16. Adenosine triphosphate
  10. 22. A mixture in which one or more substances are evenly distributed
  11. 23. Substances that increase the speed of chemical reactions