Homework Help: chem

Posted by Cassie on Sunday, May 22, 2011 at 2:37pm.

if the mass of a copper wire before an experiment wieghed 2.82 grams then after it wieghed 2.57 grams. what is the mass of copper that reacted

chem - bobpursley, Sunday, May 22, 2011 at 3:05pm
I bet it is the difference.

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