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ParisChiyann

When the ionic compound KI is dissolved in water, the I– ions are pulled into solution by the attraction between ?

  • one year ago
  • one year ago

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  1. Australopithecus
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    Water can solvate and stabilize|dw:1355405873806:dw| Iodine anion through hydrogen bonding

    • one year ago
  2. Australopithecus
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    if you dont want to be specific you can say intermolecular interactions

    • one year ago
  3. ParisChiyann
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    These are the answer choices ! he K+ and I– ions. the K+ ion and the negative end of a water molecule. the I– ion and the negative end of a water molecule. the I– ion and the positive end of a water molecule.

    • one year ago
  4. Australopithecus
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    |dw:1355405998873:dw| The oxygen is very electronegative so it will pull electron density away from the hydrogens

    • one year ago
  5. Australopithecus
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    coulomb's law states that opposite charges attract

    • one year ago
  6. ParisChiyann
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    https://www.connexus.com/content/media/192519-4132009-42923-PM-330220932.jpgI There's the picture !

    • one year ago
  7. Australopithecus
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    |dw:1355406176693:dw|

    • one year ago
  8. Australopithecus
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    I cant access it the lower case delta denotes partial charge

    • one year ago
  9. Australopithecus
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    Can you make a guess from this information?

    • one year ago
  10. ParisChiyann
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    No , I'm still confused !

    • one year ago
  11. Australopithecus
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    Do you understand that opposite charges attract

    • one year ago
  12. ParisChiyann
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    So the answer is A ?

    • one year ago
  13. Australopithecus
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    Well the iodine will pull electrons away the Potassium ion, and it will dissociate away from the K+ because it can form more interactions with the hydrogens than it can with potassium which is a larger element

    • one year ago
  14. ParisChiyann
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    Okay so it's not A , so it's D ?

    • one year ago
  15. Australopithecus
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    None of your answers are labeled and it is kind of vague as to which is A and which is B so can you just state the answer you chose and I will confirm it. Source: http://www.chemguide.co.uk/atoms/bonding/hbond.html

    • one year ago
  16. ParisChiyann
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    I said this first A. the K+ and I– ions. Then I said D. the I– ion and the positive end of a water molecule.

    • one year ago
  17. Australopithecus
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    D is right

    • one year ago
  18. ParisChiyann
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    Okay , thank you so much !

    • one year ago
  19. Australopithecus
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    The first guess isn't right because K+ and I- will favorably interact, because K+ is missing one electron and thus is rendered with a positive charge and I has an extra electron thus have a negative charge. The reason they can dissociate is because hydrogen bonding can stabilize the negatively charge iodine and thus it can just move away from the positively charged Potassium ion which can be stabilized by the oxygen present in the water molecules

    • one year ago
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