Forensic Chemistry

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Across
  1. 4. in the region of the electromagnetic spectrum including wavelengths from 100 to 380 nm.
  2. 5. Ability of one material to dissolve in or blend uniformly with another.
  3. 7. A chemical combination of two or more elements, or two or more different atoms arranged in the same proportions and in the same structure throughout the substance.
  4. 9. A gaseous element that makes up approximately 20% of the Earth’s atmosphere.
  5. 13. An organic compound containing only carbon and hydrogen.
  6. 16. A gaseous element that makes up approximately 80% of the Earth’s atmosphere.
  7. 19. A number used to represent the acidity or alkalinity of an aqueous solution.
  8. 20. A small glass or plastic tube used for the removal of small portions of fluid and can be also used for measuring the volume of liquids.
  9. 21. A chemical reaction in which oxygen combines with another substance; any reaction in which electrons are transferred.
  10. 23. A combination of chemical symbols that expresses a molecule’s composition.
  11. 24. liquids of various types having the function of dissolving the binder.
  12. 25. An atom, molecule or radical that has lost or gained one or more electrons, thus acquiring an electric charge.
  13. 26. Pale yellow powder used in dyes and acid-base indicator.
  14. 30. An instrument used to measure the intensity of a specific wavelength of light entering and leaving a solution.
  15. 31. An aliphatic hydrocarbon having the chemical formula C6H2n+2.
  16. 33. A positively charged atom, or group of atoms, or a radical that moves to the negative pole during electrolysis
  17. 35. To make a solution neutral pH of 7 (either acidic or basic) by adding a base to an acidic solution, or by adding an acid to a basic solution.
  18. 36. study of chemical reactions and properties of all the elements and their compounds, except for hydrocarbons
  19. 38. A laboratory flask primarily intended for the preparation of definite, fixed volumes of solutions.
Down
  1. 1. Ionization A type of mass spectrometry in which a molecule reacts under relatively low energy with a reagent gas rather than fragmenting extensively
  2. 2. A basic substance (pH greater than 7) that has the capacity to neutralize an acid and form a salt.
  3. 3. The use of water to lower the concentration or amount of a contaminant.
  4. 6. A concentrated standard solution used to prepare calibrators.
  5. 8. An analytical technique for identification of chemical structures, determination of mixtures, and quantitative elemental analysis.
  6. 10. The amount of a substance in a stated unit of a mixture or solution. Common methods of stating this are percent by weight, percent by volume, or weight per unit volume.
  7. 11. An organic compound having a hydroxyl (-OH) group attached.
  8. 12. A single, homogeneous liquid, solid, or gas phase that is a mixture in which the components are uniformly distributed throughout the mixture.
  9. 14. A colorless gaseous alkaline compound that is very soluble in water, has a characteristic pungent odor, and is lighter than air.
  10. 15. Unit of temperature (K) measurement used to measure the color temperature of light.
  11. 17. The method of analyzing the composition of a solution by adding known amounts of a standardized solution until a given reaction is produced.
  12. 18. The simplest element. Atomic number of 1.
  13. 22. A class of chemical compounds with carbon bases.
  14. 27. A physical state of matter that has low density and viscosity, can expand and contract greatly in response to changes in temperature and pressure.
  15. 28. Ability of a substance to chemically interact with other substances.
  16. 29. A negatively charged subatomic particle that circles the nucleus of the atom in a cloud.
  17. 32. The substance dissolved in a solvent.
  18. 34. 106 presently known substances made up of atoms with the same atomic number
  19. 37. The element upon which all organic molecules are based