Thomas Jefferson National Accelerator Facility
Jefferson Lab: Balancing Act!
The computer will give you a number of incomplete chemical equations. Balance the chemical equations by selecting coefficients from the pull-down menus. Once you think the equation is balanced, press the 'Check my answer!' button.
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Balancing Chemical Equations
Learn how to balance equations with this fun, animated exercise. Add in the correct coefficients to get the right answers.
Chem Tutor
Chem Tutor: Basic Stiochiometry
Detailed discussion of stoichiometry, mols, and percents. Includes examples showing dimensional analysis (factor-lable method) and a link to the mole road map (a diagram which leads one through the stoichiometric problem-solving process).
CK-12 Foundation
Ck 12: Chemistry Simulation: Balancing Chemical Equations
[Free Registration/Login Required] Learn the basics of chemical equations by watching methane bubbles light on fire. Practice balancing chemical equations.