Warning! This learning object uses Adobe Flash and your browser does not support Flash. To view this content you will either need to install and/or enable flash in your web browser or upgrade your web browser.
Click Here for instructions to enable Flash.
Students solve a molarity problem in a drag and drop exercise.
Introduction to the Periodic Table
By Mona Wenrich
Students read about the basic organization and structure of the periodic table of elements. By clicking on the symbol, they can read that element's atomic number and weight. In an exercise, students identify elements as belonging to a group, a period, or neither.
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Learners assign oxidation numbers to atoms in neutral compounds and in polyatomic ions. Six examples are worked through in detail, and three problems are provided.
By Jill Larson
In this animated and interactive object, learners follow two rules to write unit conversion fractions.
Conversion Between Mass and Moles of an Element
By Dr. Miriam Douglass, Dr. Martin McClinton
Atomic weights are used to convert the mass of a sample into the number of moles of the element in the sample and vice versa. Four examples are provided for practice.
Creative Commons Attribution-NonCommercial 4.0 International License.
Learn more about the license »