Chemistry

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Across
  1. 3. - method of separating mixtures by removing the liquid layer from a precipitate.
  2. 5. - energy that flows between matter samples because of a temperature difference.
  3. 6. - the closeness of a measurement to a true or accepted value.
  4. 9. - a substance that flows under applied shear stress, including liquids, gases, and plasma.
  5. 10. zero - the lowest possible state at which matter can exist, 0 K or -273.15°C.
  6. 11. - measure of the amount of light absorbed by a sample.
  7. 13. - absorption cross section of extinction coefficient, which is the absorbance of a solution per unit path length and concentration.
  8. 15. yield - the quantity of product experimentally obtained from a chemical reaction.
  9. 19. - transition metal that is atomic number 108 with element symbol Hs.
  10. 20. - device used to measure gas pressure.
  11. 22. weight - sum of the atomic weights of atoms in a molecule.
  12. 27. - state of matter change from vapor phase to liquid phase.
  13. 30. - atom or molecule which has a different number of protons than electrons and thus a net electrical charge.
  14. 31. - an expression of the quantity of a substance in a defined volume.
  15. 33. - amount of matter a substance contains or property of matter that resists acceleration.
  16. 36. - process of converting a material from a solid or gas phase into the liquid phase.
  17. 38. - type of combustion in which flame propagation is less than 100 m/s and overpressure is less than 0.5 bar.
  18. 41. domain - the number of lone electron pairs or bond locations around an atom or molecule.
  19. 42. variable - variable being measured (tested) in response to changing the independent variable.
  20. 43. - noble gas with element symbol Ne and atomic number 10.
  21. 44. - rate of flow of electricity.
  22. 45. - rare earth metal with element symbol Ce and atomic number 58.
  23. 47. - element 36 on the periodic table with symbol Kr.
  24. 49. point - the lowest temperature a vapor will initiate and sustain combustion.
  25. 50. (kPa) - unit of pressure exerted by a 10 g mass on a square centimeter. There are 1000 Pa in 1 kPa.
  26. 52. - state of matter characterized by having a definite volume but not a definite shape.
  27. 53. radiation - light; self propagating energy that has electric and magnetic field components.
  28. 55. - Bromine is the name for the element with atomic number 35 and is represented by the symbol Br.
  29. 56. - process in which a liquid changes to a solid.
  30. 57. mass - sum of the atomic masses of atoms in a molecule.
  31. 59. - having a large ratio of solute to solvent.
  32. 63. - alkaline earth metal with element symbol Be and atomic number 4.
  33. 64. - mass per unit volume.
  34. 66. - the splitting of an atomic nucleus, which results in two or more lighter nuclei and a release of energy.
  35. 68. - radioactive metal with element symbol Bk and atomic number 97.
  36. 70. - class of fat-soluble molecules, also known as oils and fats
  37. 71. - Iodine is the name for the element with atomic number 53 and is represented by the symbol I. It is a member of the halogen group.
  38. 72. - transition metal with element symbol Bh and atomic number 107.
  39. 74. - uniform through its volume.
  40. 75. - solidification of matter into the highly ordered form of a crystal.
  41. 78. - luminescence released when an atom absorbs electromagnetic radiation and emits a photon when the electron falls to a lower energy state.
  42. 79. - an aqueous solution with a pH greater than 7.
  43. 80. ion - a singlet halogen atom, which has a charge of -1 (e.g., Cl-)
Down
  1. 1. - stable negatively charged subatomic particle.
  2. 2. - element with atomic number 1 and symbol H.
  3. 4. - alkaline earth metal with element symbol Ba and atomic number 56.
  4. 5. - molecule consisting entirely of carbon and hydrogen atoms.
  5. 7. - process by which atoms, ions, or molecules enter a bulk phase.
  6. 8. - property of an atom that reflects its ability to attract electrons in a chemical bond.
  7. 12. - chemical species that either accepts protons or else donates electrons or hydroxide ions.
  8. 14. point - temperature at which a liquid's vapor pressure is equal to the external gas pressure.
  9. 16. - prefix meaning "one thousand".
  10. 17. - an ion consisting of one carbon bonded to three oxygen atoms (CO32-) or a compound containing this ion.
  11. 18. - settling of sediment or particles onto a surface or the phase change from the vapor to solid phase.
  12. 21. orbital - wave function of an electron in a molecule.
  13. 23. - a substance containing gas bubbles trapped within a liquid or solid.
  14. 24. - functional group consisting of a carbon atom double bonded to oxygen, C=O.
  15. 25. - the ability to do work (e.g., kinetic energy, light).
  16. 26. - alkali metal with atomic number 3 and element symbol Li.
  17. 28. - rare earth metal with element symbol Gd and atomic number 64.
  18. 29. - is the name for the element with atomic number 83 and is represented by the symbol Bi. It is a member of the metal group.
  19. 32. - an element in Group VIIA of the periodic table (e.g., Br, Cl).
  20. 34. - a homogenous mixture in which dispersed particles do not settle out.
  21. 35. - element with atomic number 25 and element symbol Mn.
  22. 37. point - temperature at which a liquid transitions to a solid (not always the same as melting point).
  23. 38. reaction - chemical reaction in which a single reactant yields two or more products.
  24. 39. - a hydrocarbon containing a double carbon-carbon bond.
  25. 40. - actinide with element symbol Np and atomic number 94.
  26. 46. - metal with element symbol Ga and atomic number 31.
  27. 48. - instrument used to measure atmospheric pressure.
  28. 51. - a push or pull on a mass, with both magnitude and direction (vector).
  29. 54. density - representation of the probability of finding an electron in a specific region around an atom or molecule.
  30. 55. - Brass is defined as an alloy of copper and zinc.
  31. 58. - rare earth metal with element symbol Nd and atomic number 60.
  32. 60. - Cesium is the name for the element with atomic number 55 and is represented by the symbol Cs.
  33. 61. - a quantitative measure of a solution's ability to neutralize an acid.
  34. 62. - radioactive metal with element symbol Cm and atomic number 96.
  35. 63. - phase transition from the liquid to gas state.
  36. 65. - Carbon is the name for the element with atomic number 6 and is represented by the symbol C. It is a member of the nonmetal group.
  37. 67. - unable to dissolve in a solvent.
  38. 69. energy - energy associated with motion.
  39. 73. - able to be shaped or pounded with a hammer, usually applied to metals.
  40. 76. series - list of metals ranked in order of decreasing activity, used to predict which metals displace others in aqueous solutions.
  41. 77. - easily ignited or capable of sustained combustion.
  42. 79. - a chemical species that accepts electrons or donate protons or hydrogen ions.