Learners use the coefficients in a balanced equation to develop the mole ratios of reactants and products involved in the reaction. Five interactive examples illustrate the method, and students test their knowledge by working four problems.

Students identify the parts of a triple beam balance and practice measuring the mass of objects.

In this interactive object, learners examine how to properly dilute hydrochloric acid.

Learners view movie clips to determine the solubility of two ionic compounds. They also examine a solubility chart and predict the solubility of compounds.