In an ideal world, sentences in a college-level essay should feature a variety of sentence types. In reality, most papers stick to simple and compound sentences, two of the types a handout on sentence patterns discusses. Part of a larger...

Resource contains and example problem and solution of how to compute percent compound within a mixture when given the mixture's mass and element percents.

Learn about naming chemical compounds in chemistry including conventions, the order of the elements, metals, non-metals, acids, and examples on naming on this site.

A collection of grid puzzles that cover topics in basic chemistry, including acids, salts, alkalis, chemistry lab equipment, the periodic table, states of matter, and more. These are excellent for topic review and reinforcement. The...

A very nice summary of key data on carbon, along with information of historical value and uses and applications of carbon compounds. Very helpful.

An essential element in the ecosystem is phosphorus. Discover the phosphorus cycle, what depends upon it, and how it works.

This resource aims to promote the use and application of chlorine in a responsible manner. Tends to focus on the many positive applications and downplay and health risks associated with some chlorine compounds, but a good source of...

Kid's learn about the science of the molecules. Tiny chemistry and compounds of atoms and elements make up all matter.

Kids learn about organic chemistry including the importance of carbon, organic molecules, compounds, hydrocarbons, synthesis, and functional groups.