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    Methane gas and flames

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    Ahmed
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    Methane gas and flames

    Post by Ahmed on Tue Sep 16, 2008 11:51 pm

    "Methane gas is made of Molecules of CH4. Write equations to for reactions when burning methane with both yellow and blue flames.

    Yellow __________________________________________
    Blue____________________________________________

    ======================================================
    "Write an equation to show how carbon monoxide can form when methane is burned."
    ======================================================

    I looked all over Google for these two....I don't know how they expect us to find such answers.

    Any help will be appreciated Smile

    P.S.: This is not a test BTW, this is HW.


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    preid1220
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    Re: Methane gas and flames

    Post by preid1220 on Tue Sep 16, 2008 11:58 pm

    i sugest beating up the neard =P or asking on a science geek site


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    Ladien
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    Re: Methane gas and flames

    Post by Ladien on Wed Sep 17, 2008 12:39 am

    I have no idea except when you burn somrthing CO2 gets added to the equation. This sounds like a lab question. Did you do a lab in class that would answer this question?


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    Ahmed
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    Re: Methane gas and flames

    Post by Ahmed on Wed Sep 17, 2008 8:19 am

    Yeah, I new water vapor and CO2 is produced...but i don't know the euqation...


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    Hassan
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    Re: Methane gas and flames

    Post by Hassan on Wed Sep 17, 2008 6:42 pm

    "Write an equation to show how carbon monoxide can form when methane is burned."

    Does this help:

    In the combustion of methane, several steps are involved:

    Methane is believed to form a formaldehyde (HCHO or H2CO). The formaldehyde gives a formyl radical (HCO), which then forms carbon monoxide (CO). The process is called oxidative pyrolysis:

    CH4 + O2 → CO + H2 + H2O

    Following oxidative pyrolysis, the H2 oxidizes, forming H2O, replenishing the active species,[clarify] and releasing heat. This occurs very quickly, usually in significantly less than a millisecond.

    2H2 + O2 →2H2O

    Finally, the CO oxidizes, forming CO2 and releasing more heat. This process is generally slower than the other chemical steps, and typically requires a few to several milliseconds to occur.

    2CO + O2 →2CO2

    Its taken from wikipedia:

    http://en.wikipedia.org/wiki/Methane


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    Ahmed
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    Re: Methane gas and flames

    Post by Ahmed on Thu Sep 18, 2008 6:00 pm

    Indeed it helped...and I found out what happens to chalk when put in fire.

    Thanks 👍


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