Vocabulary for Exam 2

123456789101112131415161718192021222324252627282930
Across
  1. 4. stored energy
  2. 9. refers to the group of atoms,molecules or objects being studied
  3. 11. no chemical bonding, but is a mixture of substances
  4. 13. is often called the “universal solvent” because it can dissolve so many chemicals, especially polar and ionic compounds
  5. 14. chemically diverse group of compounds, that do not dissolve in water
  6. 17. energy in motion
  7. 21. atoms of carbon, hydrogen,and oxygen.
  8. 24. synthetic (human-made) polymers
  9. 26. are composed of long chains of subunits called amino acids
  10. 28. cells are usually independent
  11. 29. a combination of two or more atoms
  12. 30. which law of thermodynamics states that energy will go from a more useful form to a less useful form
Down
  1. 1. give water cohesion by enabling water molecules to adhere loosely to one another.
  2. 2. are compounds that readily release hydrogen ions (H+) in water.
  3. 3. Forms of a single element that differ in atomic mass are called
  4. 5. the study of energy and its transformations
  5. 6. Bases have a pH ______ 7
  6. 7. cells are often found in multicellular organisms.
  7. 8. can change the position, physical composition, or temperature of matter
  8. 10. One joule (J) is the work done when one kilogram is accelerated at one meter per second per second.
  9. 12. Amount of work you get,divided by the amount of energy you put into it.
  10. 13. transfers energy from one object to another.
  11. 15. One __________ is the amount of energy needed to heat one gram of pure water one degree Celsius
  12. 16. - all the energy and matter exchanges that occur within a living cell or organism
  13. 18. adenine, (A), uracil (U), guanine (G), and cytosine (C)
  14. 19. Formed when two or more atoms share electrons.
  15. 20. Formed when one atom gives up an electron to another atom.
  16. 22. a molecule made up of two or more kinds of atoms held together by chemical bonds
  17. 23. are substances that readily take up hydrogen ions (H+) and release hydroxide ions (OH-) in solution.
  18. 25. adenine, (A), thymine (T), guanine (G), and cytosine (C)
  19. 27. Acids have a pH ______ 7