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Last Activity 15-10-2012

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  1. otrivine
    otrivine
    22-08-2012
    Hi how are u I was wondering did u do the 1 year life science CE ? Can u tell me how it was and the exams and coursework thanks
  2. RA23
    RA23
    22-05-2012
    Can anyone help me with these Chemistry questions?

    How many hydrogen atoms make the same mass as one sodium atom?

    How many moles of iron atoms are there in 56g of iron?

    How many atoms are there present in 12g of carbon?

    How many moles of carbon atoms are there in 3g of carbon?

    What mass of hydrogen contains the same number of atoms as 3g of carbon?

    How many carbon atoms are there in 3 moles of carbon?

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  • Last Activity 15-10-2012
  • Join Date 31-08-2009

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