Chem 1st Semester Celebration

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Across
  1. 4. An s orbital has a ____ shape.
  2. 8. Dispersion,Dipole^2 & H-bonds are ___ molecular.
  3. 9. NO is called nitrogen _____.
  4. 11. Bromine is an example of a _____ element.
  5. 13. A sample of I2 is held together by __ forces.
  6. 16. hydrobromic acid has the formula ____.
  7. 19. Molecular geometry of this molecule is ___.
  8. 24. liquids with weak IMF's have ___ viscosities
  9. 25. This is a picture of a pure _____.
  10. 27. A uniform blend of two or more metals
  11. 29. F2 + NaI --> NaF + I2 is a ___ replacement rxn.
  12. 31. Sulfur melting is an example of a ___ change.
  13. 32. H2CO3 --> CO2 + H2O is a ___ rxn.
  14. 33. _____ has 8p+,8no,8e-.
  15. 35. Sugar water is a _____ mixture.
  16. 36. The element, ___, can take on a -1 or +1 charge.
  17. 38. Covalent bonds are ____molecular forces.
  18. 41. A substance that conducts electricity in H20
  19. 42. Ionic compounds exhibit ____ melting points.
  20. 43. An e- dropping from n=4 to n=1 ___ Energy
  21. 45. Iron rusting is an example of a ___ change.
  22. 46. CO2 is ____because its dipoles cancel out.
Down
  1. 1. [Ne]3s23p2 describes the element ____.
  2. 2. Magnesium and ___ ions cause hard water.
  3. 3. The products of all combustion rxns are CO2 & __.
  4. 5. ____ bonding is an extreme form ofdipole-dipole
  5. 6. CO2 gas ____ a burning splint.
  6. 7. Phosphorus takes on a -_____ charge in compounds
  7. 10. The molecular geometry of PCl3 is ____.
  8. 12. The element, iron, is describe by...
  9. 14. H2SO3 is _______ acid.
  10. 15. A p subshell contains 3 p orbitals
  11. 17. Cu2O would have a roman numeral of ___ in the name.
  12. 18. The e- in the outer most energy level are ____.
  13. 20. The ion Ba+2 _____ 2 electrons.
  14. 21. Aluminum sulfate would have ___ Al's in the formula
  15. 22. The bond between N and H in NH3 is ____.
  16. 23. Red photons have __ wavelengths than blue photons
  17. 26. UV light is ___energetic than IR radiation.
  18. 28. A ____ speeds up a chemical reaction.
  19. 30. The bond between barium and oxygen is ____.
  20. 34. A single p orbital can fit ___ e-'s.
  21. 35. MgSO4x7H2O is an example of a _____.
  22. 37. This element, [Ar]4s2 3d10 4p3 has __ v.e.
  23. 39. FeN would be called iron (III) ___.
  24. 40. This isotope of sulfur has ____ neutrons.
  25. 44. The molecule, CO2, has a ____ shape.