Alabama Learning Exchange
Alex: Balancing Chemical Reactions
Students will participate in a guided inquiry activity using manipulatives to learn how to balance chemical reactions. This activity was developed in cooperation with Michelle Holdbrooks at Thompson High School...
American Chemical Society
Middle School Chemistry: What Is a Chemical Reaction?
Use chemical formulas to visualize how chemical equations are balanced.
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).