Chemistry Review

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Across
  1. 3. / H+Br
  2. 4. / mx TxCp
  3. 5. / CO2+H20
  4. 7. / A charged group of covalently bonded atoms.
  5. 8. / AD+CB
  6. 10. Reaction / 2 or more substances combine to form a new compound.
  7. 12. Yield / The ratio of the actual yield to the theoretical yield, multiplied by 2.
  8. 13. / 2
  9. 16. Numbers / In order to indicate the general distribution of electrons among the bonded atoms in a molecular compound or a polyatomic ion.
  10. 17. / The decomposition of a substance by an electric current.
  11. 20. Replacement Reaction / 1 element replaces a similar element in a compound.
  12. 21. Mass Unit / Exactly 1/12 the mass of a carbon-12 atom
  13. 23. / 5
  14. 25. / B+AC
  15. 26. / Q/M T
  16. 27. / An ionic compound composed of a cation and the anion from an acid.
  17. 28. / A+B
  18. 30. Bonding / The sharing of electron pairs between 2 atoms.
  19. 32. Stoichiometry / The mass relationship of elements in a compounds.
  20. 34. Mass / The mass of one mole of a pure substance
  21. 35. / H+ClO4
  22. 36. / The smallest unit of an element that maintains the properties of that element.
  23. 37. Bond / A covalent bond produced by the sharing of 3 pairs of electrons between 2 atoms.
  24. 38. / Tf-Ti
  25. 40. Mass / The sum of the average atomic masses of all the atoms represented in its formula.
  26. 42. / The study of the composition, structure, and properties of matter and the changes it undergoes.
  27. 45. bond / Double and triple bonds.
  28. 46. / A general term for any isotope of any element.
  29. 48. Molecule / A molecule containing only 2 atoms.
  30. 51. / A broad generalization that explains a body of facts or phenomena.
  31. 53. Replacement / The ions of 2 compounds exchange places in an aqueous solution to form 2 new compounds.
Down
  1. 1. / -log(OH-)
  2. 2. / They never have an uneven distribution of charge.
  3. 3. / A basis for making predictions and for carrying out further experiments.
  4. 4. / Something that has magnitude, size. or amount.
  5. 6. Reaction / A substance combines with oxygen, releasing a large amount of energy in the form of light and heat.
  6. 9. / 4
  7. 11. / H+I
  8. 12. / -log(H30+)
  9. 14. / 1
  10. 15. Stoichiometry / The mass relationships between reactions and products in a chemical reactions.
  11. 18. / A small whole number that appears in front of a formula in a chemical equation.
  12. 19. Composition / The percentage by mass of each element in a compound.
  13. 20. / A specific portion of matter in a given region of space that has been selected for study during an experiment or observation.
  14. 21. Yield / The measured amount of a product obtained from a reaction.
  15. 22. Ratio / A conversion factor that relates the amounts in moles of any 2 substances involved in a chemical reaction.
  16. 24. / A pure substance made of only one kind of atom.
  17. 25. / AB
  18. 26. / Any substance that has a definite composition.
  19. 28. number / the number of particles in exactly 1 mole of a pure substance.
  20. 29. Method / A logical approach to solving problems by observing and collecting data, formulating hypothesis, and formulating theories that are supported by data.
  21. 31. / 3
  22. 33. / Atoms of the same element that have different masses.
  23. 35. / H+CL
  24. 39. / A measure of the amount of matter.
  25. 41. / Polyatomic ions that contain oxygen.
  26. 43. / A neutral group of atoms that are held together by covalent bonds.
  27. 44. Compounds / Compounds composed of 2 different elements.
  28. 47. Reactant / The substance that is not used up completely in a reaction.
  29. 49. atomic mass / The weighted average of the atomic masses of the naturally occurring isotopes of an element.
  30. 50. / An explanation of how phenomena occur and how data or events are related.
  31. 52. / H+ClO3