Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    5
    ReputationRep:
    We have been recently been covering combustion in Chemistry. I understand that complete combustion gives off water and carbon dioxide. However, incomplete combustion has 3 products and they are water, carbon monoxide and carbon. How do I find out what products are formed in the reaction? I know water is always produced but what about the carbon and carbon monoxide.
    Offline

    18
    ReputationRep:
    (Original post by tajtsracc)
    Usually the question will tell you which of the two products will form. At least, that's what AQA does, anyway.
    ^^ They will tell you if a black solid CO is the only product
    • Thread Starter
    Offline

    5
    ReputationRep:
    (Original post by tajtsracc)
    Usually the question will tell you which of the two products will form. At least, that's what AQA does, anyway.
    Okay, thank you very much for your answer
    • Thread Starter
    Offline

    5
    ReputationRep:
    (Original post by Emz99)
    ^^ They will tell you if a black solid CO is the only product
    But water is always formed, correct?
    Offline

    15
    ReputationRep:
    (Original post by A1i)
    We have been recently been covering combustion in Chemistry. I understand that complete combustion gives off water and carbon dioxide. However, incomplete combustion has 3 products and they are water, carbon monoxide and carbon. How do I find out what products are formed in the reaction? I know water is always produced but what about the carbon and carbon monoxide.
    Hiya,

    Just as you've written in your post there are different products for complete and incomplete combustion.

    Complete combustion: water, carbon dioxide

    Incomplete combustion: water carbon monoxide and carbon particulates (they haven't combusted due to a lack of oxygen).

    These products are formed in every equation. So you'll need to write out the combustion equation each time and balance it.
    Offline

    18
    ReputationRep:
    (Original post by A1i)
    But water is always formed, correct?
    yes because how would it be balanced otherwise?
    • Thread Starter
    Offline

    5
    ReputationRep:
    (Original post by Emz99)
    yes because how would it be balanced otherwise?
    Okay,thanks for the help.
    • Thread Starter
    Offline

    5
    ReputationRep:
    (Original post by VioletPhillippo)
    Hiya,

    Just as you've written in your post there are different products for complete and incomplete combustion.

    Complete combustion: water, carbon dioxide

    Incomplete combustion: water carbon monoxide and carbon particulates (they haven't combusted due to a lack of oxygen).

    These products are formed in every equation. So you'll need to write out the combustion equation each time and balance it.
    Thank you for the help!
    • Community Assistant
    • Study Helper
    Offline

    14
    ReputationRep:
    (Original post by A1i)
    But water is always formed, correct?
    Yes, hydrogen is far too reactive to be produced.
    • Community Assistant
    • Study Helper
    Offline

    14
    ReputationRep:
    (Original post by Emz99)
    ^^ They will tell you if a black solid CO is the only product
    Carbon monoxide is a colourless gas. If they tell that that there is a black solid then that is carbon particles.
    • Thread Starter
    Offline

    5
    ReputationRep:
    (Original post by charco)
    Carbon monoxide is a colourless gas. If they tell that that there is a black solid then that is carbon particles.
    Thanks for the help!
    Offline

    18
    ReputationRep:
    (Original post by charco)
    Carbon monoxide is a colourless gas. If they tell that that there is a black solid then that is carbon particles.
    oh yh lmao
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Will you be richer or poorer than your parents?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.