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April 20, 2014

Homework Help: ***Chemistry!!!!

Posted by Anonymous on Sunday, August 11, 2013 at 12:13am.

Carry out the following operations, and express the answer with the appropriate number of significant figures.

1.)[(285.3 multiplied by 105) - (1.500 multiplied by 103)] multiplied by 2.8948

2.) 874 multiplied by [1267 - (3.50 multiplied by 128)]

*I know what significant figures are but I am constantly getting my answers wrong for both questions. Help, please??

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