In this brief object, learners examine the direct relationship between the volume of a gas sample and the number of moles of gas. A problem is presented so students can test their knowledge of Avogadro's Law.

Learners examine a table of common polyatomic ions. Eight examples are provided for practice.

Learners examine the method for calculating the atomic weight of copper from the natural percent composition of each of its two isotopes.

Students practice identifying common elements from the periodic table by name or symbol.

You'll practice identifying components of a spot welding symbol.

Review Game for Matter

match the formulas

Strength of Materials