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ChemistryThe Mole and Atomic Mass
The mole is an important concept for talking about a very large number of things...
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Scientists and ResearchLuis E. Miramontes
His name may not be familiar, but Mexican chemist Luis Miramontes was instrumental in a...
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Earth ScienceEarth's Atmosphere
Earth's atmosphere contains many components that can be measured in different ways. This module describes...
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