Posted 29 June 2011 - 11:29 AM
hmmm so yeah we are doing experiments on water purification. and i need a few methods on how to purify water, and a list of the chemical substances ill be needing to do the purifying.
jazakumullahu khair no pressure
Posted 29 June 2011 - 04:24 PM
Posted 30 June 2011 - 03:18 AM
Make good use of Mr. Google grasshopper. It will be your key to getting an A.
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