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Nuclear reaction or chemical reaction

  1. Aug 10, 2007 #1
    If you light a match to a mixture of oxygen and hydrogen which then reacts explosively to form water. Is it a chemical or nuclear reaction?

    I know a chemical reaction is one in which a substance is changed into one or more new substances.

    A nuclear reaction is one in which a new element can be made with different proton and neutron numbers.

    I think from the above to would say the reaction is Nuclear and not chemical.
    Please shed some light
     
  2. jcsd
  3. Aug 10, 2007 #2

    Astronuc

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    Staff: Mentor

    In combustion of hydrogen with oxygen

    2 H2 + O2 -> 2 H2O

    The element identities are preserved.

    Now is it nuclear or chemcial?
     
  4. Aug 10, 2007 #3
    From the equation I would say the reaction is a chemical one.
     
  5. Aug 10, 2007 #4

    Astronuc

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    Staff: Mentor

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