Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: telle_star on March 18, 2006, 07:42:54 AM
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???hi all, I'm still keeping on with this assignment and was wondering if anyone would know where to find the energy required for the extraction of copper, chromium and calcium?
I already have 30 – 40 million btu/tonne for copper if that makes any difference.
Thanks heaps for your help :D