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    Please can anybody help me out some,are u supposed to know some questions or is it memorizing the past paper Like one questions was What is the most likely reason for the yield being well below 100%? HOW AM I SUPPOSED TO KNOW THAT? is it written somewhere any books? wtf... Suggest, with a reason, how the copper(II) oxide should be added to the
    boiling sulfuric acid.?Where is this all written how can they do this ? Why is no one adressing thissssssssssss................. ................. ) When the crystals are heated, they turn white. On adding water, they return to
    their original colour. Suggest a use for this reaction?How do i know this i got a U grade last year because of this WTAFFFFFFFFFFFFFFok quesiotions about ionization born haber alkenes alkanes substiution mass spec But who knows these ones ?Invisible ink Thats the answer ,ive been sitting for 7 hrs doing pp and they think i dont work hard fcuk them ill bomb there frickin database.
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    (Original post by F Edexcel)
    Please can anybody help me out some,are u supposed to know some questions or is it memorizing the past paper Like one questions was What is the most likely reason for the yield being well below 100%? HOW AM I SUPPOSED TO KNOW THAT? is it written somewhere any books? wtf... Suggest, with a reason, how the copper(II) oxide should be added to the
    boiling sulfuric acid.?Where is this all written how can they do this ? Why is no one adressing thissssssssssss................. ................. ) When the crystals are heated, they turn white. On adding water, they return to
    their original colour. Suggest a use for this reaction?How do i know this i got a U grade last year because of this WTAFFFFFFFFFFFFFFok quesiotions about ionization born haber alkenes alkanes substiution mass spec But who knows these ones ?Invisible ink Thats the answer ,ive been sitting for 7 hrs doing pp and they think i dont work hard fcuk them ill bomb there frickin database.
    Yield below 100%: not all of the reactants have reacted. Product has escaped (more likely if in gas form) or evaporated (if liquid).

    If a question begins with 'suggest' it means just that, it's not on the specification and wants you to use your knowledge of chemistry to make an educated guess.

    Can't help with the crystal question other than it's a reversible reaction.

    I do OCR Salter's Chemistry so it's not exactly the same. But it's not about learning the questions, it's about learning the content and understanding the equations/things to apply
 
 
 
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