Naming Binary Ionic Compounds Containing Variable Oxidation State Cations (Screencast)
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Roman numerals are used to identify the charges on metal cations having multiple oxidation states. Five examples are provided for practice.
Oxidation States of Ions
Learners examine the periodic table to identify metallic elements that have either fixed or variable oxidation states.
By Jill Larson
In this interactive object, the learner practices identifying charges on ions.
Chemical Bonds: The Hydrogen Bond
In this interactive object, students examine a type of chemical bond known as the "hydrogen bond."
Acid-Base Reactions (Screencast)
By Dr. Miriam Douglass, Dr. Martin McClinton
Learners view several movie clips that demonstrate the use of an indicator to follow the neutralization reaction that occurs when an acid and a base are mixed. Students test their knowledge in a series of questions. Immediate feedback is given.
Common Types of Oxidation-Reduction Reactions (Screencast)
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.
Biomolecules: The Carbohydrates (Video)
By Becky Polk-Pohlman
Viewers watch an introduction to monosaccharides, disaccharides, and polysaccharides. The processes for dehydration synthesis and hydrolysis.
Percent Composition of Compounds (Screencast)
Learners examine the method used to calculate the mass percent of an element in a compound. Three examples and one problem illustrate the method.
Product Yields in Chemical Reactions (Screencast)
Learners examine the meaning of theoretical yield, actual yield, and percent yield. They test their knowledge by solving two problems.