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Thread: NACL crystal

  1. #1 NACL crystal 
    Forum Freshman almirza's Avatar
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    hi friends



    i have a question

    when we make nacl we use chlorine gas and sodium
    and as i know every molecule of any gas has two atom so chlorine gas will be (cl2)
    and in NACL every atom af Na will bond with one atom af CL2
    but the 2 atoms of chlorine molecule are bond with covalent bond what will happen to that bonding
    because as we know every Na atom will give every Cl atom one electron to reach the state of stability ( 8e-)
    so there is no need to that covalent bond
    does it break? How
    ?


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  3. #2  
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    When sodium combines with Cl2 to form NaCl, the Cl-Cl bond breaks apart. Any covalent bond can be broken by adding energy. Think of the bond like two balls (the Cl atoms) connected together with a spring. If you pull hard enough, the spring breaks.

    Also, not ALL gases are made up of two atoms, although many are.


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  4. #3  
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    I believe the reaction of Na with Cl2 is quite exothermic.

    The energy required to break the Cl-Cl bond is supplied by the energy released from forming the ionic Na-Cl bonds.
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  5. #4  
    Forum Freshman almirza's Avatar
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    thank you all for the answer
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