A Chemical Jigsaw Puzzle [ Teens/Mature Teens ] - Collection of printable learning aids to help improve the understanding of combining powers (valences) in chemical reactions. http://www.harmsy.freeuk.com/jigsaw.html

Balancing Chemical Equations [ Teens/Mature Teens ] - Shockwave activity to help in balancing equations. http://www.mcli.dist.maricopa.edu/proj/mu/eqbal/

Balancing Chemical Equations [ Teens/Mature Teens ] - Animated tutorial with a seesaw showing what happens if you add coefficients to certain compounds and molecules in chemical equations. http://chemistry.boisestate.edu/rbanks/inorganic/balancing.html

Balancing Chemical Equations [ Teens/Mature Teens ] - Animation showing steps in adding coefficients. http://richardbowles.tripod.com/chemistry/balance.htm

Balancing Chemical Equations Tutorial [ Teens/Mature Teens ] - Visual shockwave exercise in which you type in coefficients and check your answers. http://www.mpcfaculty.net/mark_bishop/balancing_equations_tutorial.htm

Balancing Equations [ Teens/Mature Teens ] - A text tutorial offering sample problems, steps, and strategies. http://members.aol.com/profchm/balance.html