Redox - 2

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  • Created by: Shannon
  • Created on: 08-05-14 09:57
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  • Redox
    • Oxidation numbers
      • How to assign oxidation numbers
        • Uncombined elements have an oxidation number of 0
        • In compound ions, the overall oxidation number is equal to the charge on the ion
        • The oxidation of a monatomic ion is the same as its charge
        • The sum of oxidation numbers for a neutral compound is 0
        • Combined oxygen is almost always -2, but there are exceptions
          • In peroxides = -1
          • In fluorides = +2 or +1
        • Combined hydrogen is +1, except in metal hydrides it is -1
    • Oxidation
      • A loss of electrons
      • Oxidation will increase
    • Reduction
      • A gain of electrons
      • Oxidation number will decrease
    • The transference of electrons

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