Problem: You may want to reference (Pages 175 - 182) Section 4.9 while completing this problem.  Assign an oxidation state to each atom in each species.CCl4

FREE Expert Solution

When examining a compound that contains different elements, you first need to determine which element has the predictable oxidation state

  • Halogens (-1), oxygen (-2), hydrogen (+1), etc. typically have a predictable oxidation state
  • There are exceptions to the predictability of oxidation states:
    • when hydrogen bonds with a less electronegative element like a metal (metal hydride, e.g. KH), 
    • when an oxygen atom forms a bond with another oxygen atom (peroxides, H2O2), and
    • when a halogen is the central atom of a polyatomic ion (e.g., ClO3-). 
    • Either the metal or noncentral atoms are used to determine the oxidation states of the other elements in those cases.


CClneutral compound

  • sum of oxidation states in neutral compound = 0
  • Cl → halogennot central atom and not bonded to O
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Problem Details

You may want to reference (Pages 175 - 182) Section 4.9 while completing this problem.  Assign an oxidation state to each atom in each species.

CCl4

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