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    :confused: im sposed 2 hav a draft ready 4 2mora 4 the rate of reaction using marble chips and hydrochloric acid when the size of the chip is changed please help cos i cnt do the scientific prediction x x x
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    measaure volume of gas produced, moles of gas = vol dm/24
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    This is quite a common coursework assignment, in other words its been done to death so there's quite a lot of stuff on the internet about it.

    Check out http://www.courseworkbank.co.uk/GCSE...s_Of_Reaction/ for ideas.
 
 
 

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