[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will define a mixture and understand why mixtures are different than pure substances. They will classify mixtures as homogeneous or...

Learn about the classification of matter based on whether the chemical composition is pure or a mixture. Understand the definitions of elements, compounds, substances, and mixtures, and what the differences are between them. Five types...

In this lesson, students are introduced to the 5 major types of chemical reactions. Each reaction type will be analyzed and specific examples will be noted. Students will then perform a lab investigation which includes each of the...

[Free Registration/Login Required] Discover the composition of matter and the relationship between matter, atoms, and elements. Students will learn the differences between elements and compounds, and how molecules are formed. Chemical...

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will use the oxidation number rules to determine the oxidation number of an atom of any element in a pure substance. They...