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korosh23

  • one year ago

Chemistry question!

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  1. korosh23
    • one year ago
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    As we know Nitrogen has a combining capacity of 3

  2. korosh23
    • one year ago
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    Then why does it form 4 bonds with oxygen in this example NO3-

  3. korosh23
    • one year ago
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    ?

  4. korosh23
    • one year ago
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    |dw:1434304270088:dw|

  5. sweetburger
    • one year ago
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    Wait i just realised im not sure I understand your question is the molecule NO3 3- or NO 3-?

  6. korosh23
    • one year ago
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    I am sorry, that has to be NO3- My bad.

  7. korosh23
    • one year ago
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    |dw:1434304751816:dw|

  8. korosh23
    • one year ago
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    ?

  9. sweetburger
    • one year ago
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    The nitrogen forms 4 bonds with the Oxygens to fullfill the octet necessary for each atom to be stable in this configuration.

  10. sweetburger
    • one year ago
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    if you are wondering how the negative charge comes about i can somewhat explain that

  11. korosh23
    • one year ago
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    but Nitrogen has a combining capacity of 3 meaning that it cannot have more than 4 bonds?

  12. sweetburger
    • one year ago
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    Ya nitrogen could not have more than 4 bonds. Nitrogen can not expand its octet i believe only elements after Neon can expand there octet.

  13. sweetburger
    • one year ago
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    Or specifically only elements that have a atomic number higher than 10 can expand there octet. If i remember correctly.

  14. sweetburger
    • one year ago
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    So yea Nitrogen is limited to 4 bonds which would have Nitrogen sharing 8 electrons with its surrounding atoms.

  15. korosh23
    • one year ago
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    No, nitrogen should be limited to 3 bonds, since combining capacity means the maximum number of bonds it can form. Do you mean Nitrogen is an exception?

  16. sweetburger
    • one year ago
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    Ok look at this

  17. sweetburger
    • one year ago
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    |dw:1434312634630:dw|

  18. sweetburger
    • one year ago
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    Then the Nitrogen completes its octet and each oxygen completes its Octet

  19. sweetburger
    • one year ago
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    I dont really know what this number of bond limits your talking about is. I know what is important and it is that each element has a full 8 valence electrons in the ion.

  20. korosh23
    • one year ago
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    Yes you are right. Combining capacity is the number of electron an element needs to become stable. It is not related to this topic. I got it. Thanks.

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