Chemistry Set 1

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Author:
omar10315
ID:
258318
Filename:
Chemistry Set 1
Updated:
2014-01-25 17:54:30
Tags:
Chem 131 chapter
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Description:
First Chemistry quiz
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  1. Formal Charge
    1: # electrons owned = # unshared+.5(#shared)

    2: formal charge = #valence - #owned
  2. Formal Charge C
    +1: 3 bonds

    0: 4 bonds

    -1:  3 bonds and a lone pair
  3. Formal Charge N
    +1: Four bonds

    0: 3 bonds and 1 lone pair

    -1: Two bonds and two lone pairs
  4. Formal Charge O
    +1: Three bonds and 1 lone pair

    0: Two bonds and two lone pairs

    -1: One bond and 3 lone pairs
  5. Bond length trends
    Decreases across a row (atoms size decreases)

    Increases down a column (atom size increases)
  6. Common Bond Angles
    Two groups - linear - 180°

    Three groups - trigonal planar - 120°

    Four groups - tetrahedral - 109.5°
  7. Water-soluble compounds
    Compounds containing alkali metal cation or ammonium ion

    Compounds containing nitrate, acetate, or chlorate

    Compounds containing chloride, bromide, or iodide (except w/ Ag+, Hg22+, Pb2+)

    Compounds containing sulfate (except w/Ag+, Hg22+, Pb2+, Ca2+, Sr2+, Ba2+)
  8. Water-insoluble compounds
    Compounds containing carbonate, phosphate, chromate, sulfide (except alkali metals or NH4+)

    Compounds containing hydroxide (except alkali metals or Ba2+)
  9. Ammonium
    NH4+
  10. Hydronium
    H3O+
  11. Mercury(I)
    Hg22+
  12. Acetate
    C2H3O2-
  13. Carbonate
    CO32-
  14. Chlorate/Chlorite
    ClO3-



    • ClO2-
  15. Bicarbonate
    HCO3-
  16. Bisulfate
    HSO4-
  17. Hydroxide
    OH-
  18. Nitrate/Nitrite
    NO3-

    NO2-
  19. Peroxide
    O22-
  20. Phosphate/Phosphite
    PO43-

    PO33-
  21. Sulfate/Sulfite
    SO42-

    SO32-
  22. Strong acids
    • Hydrochloric (HCl)
    • Hydrobromic (HBr)
    • Hydroiodic (HI)
    • Nitric (HNO3)
    • Chloric (HClO3)
    • Perchloric (HClO4)
    • Sulfuric (H2SO4)
  23. Strong Bases
    Groups 1+2 with hydroxide
  24. Chromate/Dichromate
    CrO42-

    Cr2O72-

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