Roman numerals are used to identify the charges on metal cations having multiple oxidation states. Five examples are provided for practice.

Learners read about lab equipment and basic safety measures. In a quiz, they view photos and determine if the lab technicians pictured are using safe practices.

Learners identify combination, decomposition, displacement, and combustion types of redox reactions. They also watch a video clip that demonstrates the reaction of sodium and water.

Learners examine a table containing the names of common cations and anions. They then check their knowledge by answering a series of questions.

All about photosynthesis.