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Thread: Help me balance this!

  1. #1 Help me balance this! 
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    hey could someone please help me balance this equation?

    KI + HNO3 = KNO3 + NO + I2 + H2O


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  3. #2  
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    I don't think it's possible?


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  4. #3  
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    Yeah i can't find anything either but it's on a test!
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  5. #4  
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    hmm.

    are you sure one of the products isn't NO2 instead of the NO. Because then it could balance ...

    2KI + 4HNO3 = 2KNO3 + 2NO2 + I2 + 2H2O
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  6. #5  
    Forum Freshman César's Avatar
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    I think the following may be the answer:

    6KI + 8HNO3 <-> 6KNO3 + 2NO + 3I2 + 4H20

    Best regards,

    César
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  7. #6  
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    Careful, the answer might be NO which could beconfusing...
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  8. #7  
    Forum Sophomore Matt Lacey's Avatar
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    Quote Originally Posted by César
    I think the following may be the answer:

    6KI + 8HNO3 <-> 6KNO3 + 2NO + 3I2 + 4H20

    Best regards,

    César
    ^^ I'm in agreement with this.
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  9. #8  
    Moderator Moderator AlexP's Avatar
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    Quote Originally Posted by César
    I think the following may be the answer:

    6KI + 8HNO3 <-> 6KNO3 + 2NO + 3I2 + 4H20

    Best regards,

    César
    I'm in agreement with this as well.
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  10. #9 from what I can see 
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    From what little knowledge I have of balancing (have only just started)
    I agree with Cesar.
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  11. #10 balanced equation 
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    That's right Ceasar, good job. It is an oxidation-reduction reaction (redox). The nitrogen is reduced from N(+5) to N(+2) and the iodine is oxidized from I(-1) to I2.

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  12. #11  
    Forum Freshman César's Avatar
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    That's right Ceasar, good job. It is an oxidation-reduction reaction (redox). The nitrogen is reduced from N(+5) to N(+2) and the iodine is oxidized from I(-1) to I2.
    The point in this reaction is that it is something more than a redox reaction. Mind that only 75% of N has been reduced.

    Best regards,

    César
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