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Edexcel igcse chemistry 2c 15th june 2016 official thread watch

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    Hi. Any suggestions of what might come? After the 1C being so hard!!!!
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    Personally I found 1C pretty easy.

    ALL Electrolysis topics including
    Definition
    What is an electric current?
    Electrolyte and non-electrolyte experiments.
    Molten (probably only if involving moles, coulombs and Faradays)
    Aluminium (cryolite, electrode replacement)
    Aqueous (concentrating on NaCl - diaphragm cell), CuSO4 and H2SO4.
    Tests for all products and observations in all cells
    Ionic half equations

    Blast furnace
    Raw materials (not carbon)
    Know all 5 reactions in detail

    Obviously uses of aluminium and iron, and why different methods used for theirextraction.

    Crude Oil
    Process of Separation in detail
    Fraction order, names, uses, properties
    Cracking
    Polymers (prep, differences,

    Four methods of making salts
    Anything related to Environment (acid rain, biodegradability, climate change)
    Giant Covalent structures - graphite/diamond
    Atmosphere – qualitative analysis/solubility
    Moles, percentage yield calculations
    Ionic bonding
    Halogens
    Ethanol
    Bond energy calculations
    Haber/contact process
    Condensation Polymerisation
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    I think this paper will literally have a lot calculation:
    -Moles
    -Electrolysis Mass Calculation
    Paper 1C didn't have much of these
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    I think electrolysis will come up 100%!!!!!😜


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    Yea i think the complicated one of alumini oxide
    We will probably have to know the ionic equations at each electrode
    Oh my what a nightmare!
    God bless me!


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    I think brine will come up too as it hasnt come in a long in a time. 😎


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    Well thats electrolysis


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    what are the uses of the 5 main crude oil fractions?
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    (Original post by Ranadosa)
    what are the uses of the 5 main crude oil fractions?
    Refinery Gases. Pottery
    Gasoline. Cars
    Kerosene. Aeroplanes
    Diesel. Cars
    Fuel oil. Ships
    Bitumen. Road
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    (Original post by igcse16)
    I think brine will come up too as it hasnt come in a long in a time. 😎


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    what is brine
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    Concentrated sodium chloride solution that undergoes electrolysis to produce
    Sodium hydroxide
    Hydrogen
    Chlorine
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    (Original post by dance25)
    Concentrated sodium chloride solution that undergoes electrolysis to produce
    Sodium hydroxide
    Hydrogen
    Chlorine
    You ready for the bloody exam?
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    am i the only that's still sleepy?
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    how was it?
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    That exam was EASY!!! I think i got 55/60 at least. There was only up to 3 markers on the paper no 4 5 or 6 mark questions.
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    (Original post by AVishaa)
    That exam was EASY!!! I think i got 55/60 at least. There was only up to 3 markers on the paper no 4 5 or 6 mark questions.
    Im annoyed, for the periodic table, for basic and acidic oxides, i put sodium for basic amd chlorine for acidic, thinking all metals produce basic oxides, all non metals have acidic. Will i get marks ???
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    Where can I find the unofficial mark scheme for this paper?
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    (Original post by Castro300)
    Im annoyed, for the periodic table, for basic and acidic oxides, i put sodium for basic amd chlorine for acidic, thinking all metals produce basic oxides, all non metals have acidic. Will i get marks ???
    Why is that wrong? I put magnesium and chlorine. Isnt it the same thing?
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    (Original post by Ali1999)
    Why is that wrong? I put magnesium and chlorine. Isnt it the same thing?
    I don't think chlorine forms a acidic oxide though
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    The acidic oxide was sulfur
 
 
 
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