Basic Chemistry

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Across
  1. 2. energy directly involved in moving matter (p.24)
  2. 4. energy in action (p.24)
  3. 8. substances that conduct an electrical current in solution (p.39)
  4. 10. oddly shaped checkerboard which provides a more complete listing of the known elements (p.25)
  5. 12. subatomic particles that bear a negative charge (p.25)
  6. 13. bond formed when electron sharing produces molecules in which the shared electrons occupy a single orbital common to both atoms (p.32)
  7. 19. chemical bond between atoms formed by the transfer of one or more electrons from one atom to the other (p.32)
  8. 20. the building blocks of elements (p.25)
  9. 21. the equivalent to the atomic weight or molecular weight (sum of atomic weights) weighed out in grams of any element or compound (p.29)
  10. 24. occurs whenever chemical bonds are formed, rearranged, or broken (p.35)
  11. 26. also known as neutral fats, are commonly known as fats when solid or oils when liquid (p.45)
  12. 28. chainlike molecules made of many similar or repeating units (monomers) (p.42)
  13. 29. substances composed of two or more components physically intermixed (p.29)
  14. 32. a measure of hydrogen ion concentration of a solution (p.40)
  15. 33. a substance that takes up hydrogen ions (H+) in detectable amounts (p.39)
  16. 34. the capacity to do work (p.24)
  17. 36. structural variations of an element that have the same number of protons and electrons but different number of neutrons (p.27)
  18. 38. subatomic particles that bear a positive charge (p.25)
  19. 39. homogeneous mixtures (meaning that the mixture has exactly the same composition or makeup throughout) of components that may be gases, liquids or solids (p. 29)
  20. 40. one mole of a substance, approximately 6.02×10^23 (p.30)
  21. 41. globular proteins that act as biological catalysts (p.51)
  22. 43. the building blocks of proteins (p.47)
  23. 46. heterogeneous mixtures, meaning that their composition is dissimilar in different areas of the mixture (p.30)
  24. 49. a long, double-stranded polymer—a double chain of nucleotides that provides basic instructions for building every protein in the body (pp.53&54)
  25. 50. two or more atoms held together by chemical bonds (p.28)
Down
  1. 1. a substance that releases hydrogen ions (H+) in detectable amounts (p.39)
  2. 3. reaction that releases energy (p.37)
  3. 5. the primary energy-transferring molecule in cells (p.55)
  4. 6. a group of molecules that includes sugars and starches (p.43)
  5. 7. one- or two-letter chemical shorthand used to designate each element (p.25)
  6. 9. form of energy stored in the bonds of chemical substances (p.24)
  7. 10. modified triglycerides (diglycerides with a phosphorus-containing group and two fatty acid chains) (p.47)
  8. 11. the process of atomic decay in which atoms of heavier isotopes of elements which are unstable, decompose simultaneously into more stable forms (p. 28)
  9. 14. study of the chemical composition and reactions of living matter (p. 38)
  10. 15. an average of the relative weights (mass numbers) of all the isotopes of an element (p.28)
  11. 16. anything that occupies space and has mass (p.24)
  12. 17. number of protons in the nucleus of an atom (p.27)
  13. 18. stored energy (p.24)
  14. 22. an energy relationship between the electrons of the reacting atoms (p.31)
  15. 23. an ionic compound containing cations other than H+ and anions other than the hydroxyl ion (OH-) (p.39)
  16. 25. subatomic particles that are neutral (p.25)
  17. 27. heterogeneous mixtures with large, often visible solutes that tend to settle out (p.30)
  18. 30. flat molecules made of four interlocking hydrocarbon rings (p.47)
  19. 31. unique substances that cannot be broken down into simpler substances by ordinary chemical methods (p.25)
  20. 35. a single strand of nucleotides located chiefly outside the nucleus and can be considered a “molecular slave” of DNA (p.54)
  21. 37. reaction that absorbs energy (p.37)
  22. 42. sum of the masses of protons and neutrons of an atom (p.27)
  23. 44. formed when two or more different kinds of atoms bind (p.28)
  24. 45. isotopes that exhibit radioactivity (p.28)
  25. 47. regions around the nucleus in which a given electron or electron pair is likely to be found (p.26)
  26. 48. central part of an atom containing protons and neutrons tightly bound together (p.25)