CHEM Chemical Equations

There are 10 multiple choice questions about writing and balancing chemical equations.

Useful links:
http://www.syvum.com/cgi/online/mult.cgi/squizzes/chem/bonds1.tdf?0: Chemical Bonds
http://www.syvum.com/cgi/online/fillin.cgi/squizzes/chem/compds1.tdf?0: Naming Common Chemical Compounds