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    Hey guys, if you're sitting any of these exams, feel free to share any hints or revision tips on here, or just any cool chemistry related stuff! Posted from TSR Mobile
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    Yes man, c3 yeahh

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    CHEMISTRY IS AWESOME.
    .. that's all
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    Some1 ask questions please

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    (Original post by TheNaughtyOne)
    Some1 ask questions please

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    Hi, how do you answer the how science works questions for Chemistry (well all the sciences)???
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    (Original post by BobThomas3)
    Hi, how do you answer the how science works questions for Chemistry (well all the sciences)???
    Well, you just have to learn the scientific process and literally 'How Science Works'!

    The normal scientific method is:

    1. Ask a question
    2. Make a hypothesis
    3. Perform experiment
    4. Collect data
    5. Draw conclusions

    You also have to learn about fair tests and different types of variables, as well as being able to describe a graph properly (which is normally more complicated than it seems )

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    (Original post by majmuh24)
    Well, you just have to learn the scientific process and literally 'How Science Works'!

    The normal scientific method is:

    1. Ask a question
    2. Make a hypothesis
    3. Perform experiment
    4. Collect data
    5. Draw conclusions

    You also have to learn about fair tests and different types of variables, as well as being able to describe a graph properly (which is normally more complicated than it seems )

    Posted from TSR Mobile
    Thanks, more specifically the questions asking 'how can you improve the results of this experiment?' (OWTTE)
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    (Original post by BobThomas3)
    Thanks, more specifically the questions asking 'how can you improve the results of this experiment?' (OWTTE)
    Is it a fair test?
    Is there only one variable being changed?
    How could uncertainty be introduced into the experiment?
    Is there potential for random or experimental error?
    Are the conclusions valid?
    Is it reliable and reproducible?

    You just have to go through all of these things and see if there's one that it doesn't fit in with.

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    (Original post by majmuh24)
    Is it a fair test?
    Is there only one variable being changed?
    How could uncertainty be introduced into the experiment?
    Is there potential for random or experimental error?
    Are the conclusions valid?
    Is it reliable and reproducible?

    You just have to go through all of these things and see if there's one that it doesn't fit in with.

    Posted from TSR Mobile
    Thank you so much, those questions are always the ones that knock me down marks
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    Best revision tip: turn up to the exam
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    (Original post by Sal11)
    Best revision tip: turn up to the exam
    Wow. Thanks a lot for your amazing help.
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    Hey which exam board is this for?
    Is it for OCR 21st Century science?
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    (Original post by Studygeek16)
    Hey which exam board is this for?
    Is it for OCR 21st Century science?
    AQA.
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    (Original post by Winading001)
    AQA.
    Oh okay thanks!
    No one seems to be doing OCR, its so annoying!!!
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    How can I prepare for 2 days time? recommendations? I am not very confident with chemistry but I think if I revise now I can do well.
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    (Original post by tridianprime)
    How can I prepare for 2 days time? recommendations? I am not very confident with chemistry but I think if I revise now I can do well.
    Go over bits you're unsure on at http://www.my-gcsescience.com/videos...soluble-salts/
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    Quite worried for C3 actually!
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    Can someone talk to me about gas chromatography and the mass spectrometer thing (GC-MS) please?
    And this molecular ion peak thing

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    (Original post by charlottejyp)
    Can someone talk to me about gas chromatography and the mass spectrometer thing (GC-MS) please?
    And this molecular ion peak thing

    Posted from TSR Mobile
    Bombarded with electrons to ionize, vaporized and accelerated through tube at different speeds depending on mass (F = \dfrac{d \rho}{d t} ), deflected by magnetic field depending on speeds and charges, mass spectrometer detects these and uses them to find out the mass of the elements and the relative composition.

    Molecular ion peak corresponds to RMM of molecule with one electron removed.

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    Determined to not **** up this exam after Biology's failure xD So yeah, hopefully it will go well. If anybody has some challenging C2 and C3 questions, please fire them at me now, thanks
 
 
 
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