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    Ok... this is really for anyone who has got to do A2 chemistry exams left but anyone can answer really

    I got 3 hours of them on 28th so i want to revise...

    You should know how it goes... if you get the question right ask you can ask another one.

    1) What chemical and what conditions would you use to reduce the green Cr3+ ion to the yellow chromate (VI) ion CrO4-

    (2 marks)
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