Pre-knowledge

Web Resources

http://ull.chemistry.uakron.edu/genobc/exams/exam01.html  

Self-grading practice problems on matter, measurement and calculations.

http://www.webelements.com

Everything about the elements in the periodic table you ever wanted to know. A great all-round resource.

http://proton.csudh.edu/homework/hwintro.html  

Contains all kinds of practice problems.

http://www.chem.ualberta.ca/courses/plambeck/p101.new/p0102x.htm
Atoms and molecules historical perspective.
http://www.sb.fsu.edu/~blaber/chm1045/lecture01/lecture01.html
Basic concepts, matter, elements, and compounds.
http://edie.cprost.sfu.ca/~rhlogan/formwrit.html
Amazing site on how to write formulas.
http://edie.cprost.sfu.ca/~rhlogan/nomen.html
Amazing site on how to name compounds.
http://www.sb.fsu.edu/~blaber/chm1045/lecture01/lecture01.html
Basic concepts, matter, elements, and compounds.
http://www.sb.fsu.edu/~blaber/chm1045/lecture04/lecture04.html
Atoms, molecules, and ions.