Watch the Crash Course video "Periodic Table" on the cover page of the Ag Chemistry website. What will you think will be most interesting part of the chemistry class, which part the least interesting? In your words, tell us what is the importance of the periodic table in this class?
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Michelle Turbeville
1/31/2014 05:52:16 am
The Period Table that it has elements and and also mass and the numbers. that is the Atom =ic number
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Gerardo Camos
10/24/2014 12:43:13 pm
An ecosystem is a collection of species.
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