Chemistry

can you please tell me if I have the correct molecule type

PO4 3- polar

SO3 polar

NO2- polar

BrCl polar

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asked by Dory
  1. phosphate tetrahedral in shape; therefore is non-polar.
    SO3 is trigonal planar which makes it non-polar.(see http://www.tutor-homework.com/Chemistry_Help/Molecular_Geometry/049_Sulfur_Trioxide_SO3.html)
    NO2- is trigonal planar electronic geometry but molecular geometry is bent or v-shaped which makes it polar.
    BrCl is polar because although linear there is a light difference in electronegativity between Br and Cl.

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    posted by DrBob222
  2. calculate number of molecules in carbon atom

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    posted by santi

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