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July 29, 2015

Homework Help: Chemistry

Posted by Sam on Thursday, September 8, 2011 at 1:16pm.

calories given off when 85g of water cools from 48C to 23C.
Express your answer using two significant figures.

I know the answer is 2100 cal, but I just need to know why the answer is a positive value instead of negative, when it is supposed to be cooling down.

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