Found in barytine (BaSO4) and witherite (BaCO3), never found in pure form due to its high reactivity.

Solving Boyles and Charles Gas Law Problems

How to set up and solve Boyle's and Charles' Law problems, with the algebra and rounding off of answers fully explained.

The Gas Laws

This video goes through the theories of Boyle, Charles and Gay-Lussac and how the equations are arrived at.