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Chemistry: Post your doubts here!

Discussion in 'International A And AS Level' started by XPFMember, Sep 29, 2011.

  1. Zaki ali asghar

    Zaki ali asghar

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    more +ve - less +ve? or just add them?
     
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  3. anastasia grey113

    anastasia grey113

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    just add them
    but like if a reaction is going in revers i.e. the species is being oxidised instead of being reduced, then reverse its sign.
     
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  4. haithsoul

    haithsoul

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    what does subs mean? lol
     
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  5. anastasia grey113

    anastasia grey113

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    u took 4 subjects?
     
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  6. haithsoul

    haithsoul

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    yes yes
     
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  7. anastasia grey113

    anastasia grey113

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    shouldnt it be like 0.77-1?
    becuz like the E for VO2+ sure is 1.00 but in it VO2+ is being oxidised to V2+ so shouldnt it be changed to -1?
     
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  8. anastasia grey113

    anastasia grey113

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    wowww MA
     
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  9. haithsoul

    haithsoul

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    yes you are right my bad.
    and yeah 4 subject sucking the life outta me
     
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  10. SohaibButt

    SohaibButt

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    Thanks :)
     
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  11. Tauqir_hamed

    Tauqir_hamed

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    anyone knows material for 33?
     
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  12. Fardeen3342

    Fardeen3342

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    YE I REALIZED THAT
     
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  13. ujjwal jha

    ujjwal jha

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    do anyone have march 2018 chemistry paper 4 question paper in soft copy . please help. it would be kind of you
     
  14. Zaki ali asghar

    Zaki ali asghar

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    can someone tell what's in syllabus related to DNA? just the hydrogen bonding for replication?
     
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  15. anastasia grey113

    anastasia grey113

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    yh
    and the structure is often asked for so know the which base pairs with which
     
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  16. Holmes

    Holmes

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    upload_2018-5-16_14-46-55.png
    9701/43/nov 2017
    1-How am I supposed to know the splitting patterns without the NMR spectrum given?
    2-In column 1 is it the number of hydrogen on adjacent carbon or the carbon which is under study?
     
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  17. anastasia grey113

    anastasia grey113

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    well the values in ppm are given so u dont need the spectrum since u already have the values
    its the on the C studied
     
  18. Fardeen3342

    Fardeen3342

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    if anyone has fm 2018 just like they did for bio please post it . thank you
     
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  19. Zaki ali asghar

    Zaki ali asghar

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    does someone have all organic reactions compiled?
     
  20. Fardeen3342

    Fardeen3342

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    Zaki ali asghar likes this.
  21. Fardeen3342

    Fardeen3342

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    second equation welp
     

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