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July 30, 2014

Homework Help: Chemistry

Posted by Shadow on Tuesday, February 5, 2013 at 6:32pm.

A mole of a pure substance contains 6.02x10^23 atoms. Alway true, sometime true or never true?

-I was thinking sometime true since a pure substance can be like H2O but H2O have 3 "atoms" (Is this what you call individual part of H2O?). Each "atoms" have 6.02E23 so it wouldn't be 6.02E23 atoms. Thanks

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