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Answers: here are some additional practice problems for this lesson you can check the answers by clicking on the answer link to the right (use atomic weights that are precise to the hundredths place. Sample problems are under the links in the sample problems column and the corresponding review material is under the concepts column new problems are given each time the problem links are followed. 15 examples of first world problems man are we ever a group of whiny bastards whether you're american, australian or european, our complaints just don't seem to have substance.
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