A screencast from Chapter 2 Part 2 in CH 221 that examines cations and anions in ionic bonds.

A screencast from Chapter 2 Part 2 in CH 221 that gives a sort of "self quiz" on polyatomic nomenclature. You can use the controls on your player to stop/start the quiz. https://mhchem.org/221/classroom/zAudio/Ch03PolyatomicQuiz.mp4

A screencast from Chapter 2 Part 2 in CH 221 which examines the formation of ionic compounds.

A screencast from Chapter 2 Part 2 in CH 221 that discusses electrostatic forces and Coulomb's Law as applied to ionic bonding.

A screencast from Chapter 2 Part 2 in CH 221 that introduces covalent molecules and covalent bonding.

A screencast from Chapter 2 Part 2 in CH 221 that looks at acids, bases and hydrated compounds (called hydrates.)

A screencast from Chapter 2 Part 2 in CH 221 that provides an overview of molar mass and how it applies to compounds.

A screencast from Chapter 2 Part 2 in CH 221 that examines percent composition and how it can lead to an empirical formula.

A screencast from Chapter 2 Part 2 in CH 221 which looks at the relationship between empirical and molecular formulas when determining the identity of a compound.

This is the audio introduction to Chapter Guide Lesson Two (which covers the first portion of Chapter Two in our textbook) for Chemistry 221.