This is the video introduction to Chapter Guide Lesson Four (which covers Chapter Four in our textbook) for Chemistry 221. https://mhchem.org/221/classroom/zAudio/CH221CG04.mp4

A screencast from Chapter 4 in CH 221 which looks at the chemical reaction and the features of them. https://mhchem.org/221/classroom/zAudio/Ch04TheReaction.mp4

A screencast from Chapter 4 in CH 221 which discusses techniques used to balance chemical reactions. https://mhchem.org/221/classroom/zAudio/Ch04BalancingEquations.mp4

A screencast from Chapter 4 in CH 221 which looks at theoretical and actual yields (and percent yield as well!) https://mhchem.org/221/classroom/zAudio/Ch04TheoActYields.mp4

A screencast from Chapter 4 in CH 221 which discusses limiting reactants and their meaning in chemistry. https://mhchem.org/221/classroom/zAudio/Ch04LimReac.mp4

A screencast from Chapter 4 in CH 221 which looks at percent composition and how the chemical reaction can assist in its determination. https://mhchem.org/221/classroom/zAudio/Ch04MassPercent.mp4

A screencast from Chapter 4 in CH 221 which examines methods used to find empirical formulas of hydrocarbons through combustion analysis. https://mhchem.org/221/classroom/zAudio/Ch04HydrocarbonEF.mp4

A screencast from Chapter 4 in CH 221 which examines methods used to find empirical formulas of hydrocarbons containing oxygen through combustion analysis. https://mhchem.org/221/classroom/zAudio/Ch04EFCHO.mp4

A screencast from Chapter 3 in CH 221 which introduces solutions in chemistry. https://mhchem.org/221/classroom/zAudio/Ch05SolutionsIntro.mp4

A screencast from Chapter 4 in CH 221 that looks at net ionic reactions - the "action of the reaction" - as well as precipitation reactions. https://mhchem.org/221/classroom/zAudio/Ch05NetIonicPPTRxn.mp4