Articles Index

Enantiomer Definition

Enantiomer definition, as used in chemistry, chemical engineering, and physics.

Kelvin Temperature Scale Definition

Kelvin Temperature Scale definition, as used in chemistry, chemical engineering, and physics.

Ideal Gas Definition

Ideal Gas definition, as used in chemistry, chemical engineering, and physics.

Oxidation State Definition

Oxidation state definition, as used in chemistry, chemical engineering, and physics.

AP Chemistry Course and Exam Topics

This is an outline of the chemistry topics covered by the AP (Advanced Placement) chemistry course and exam, as described by the College Board.

Worked Chemistry Problems

These are examples of worked chemistry problems. Printable worksheets with questions and answers are also provided.

Nernst Equation

The Nernst equation is used to calculate the voltage of an electrochemical cell or to find the concentration of one of the components of the cell. Here is a look at the Nernst equation and an example of how to apply it to solve a problem.

Green Fire Halloween Jack-o-Lantern

A Halloween jack-o-lantern filled with green fire is much more impressive than one lit with the usual candle. Here's how to produce this easy effect yourself.

Dry Ice Crystal Ball Bubble

The giant bubble you can make using dry ice and bubble solution sort of resembles a crystal ball. This is an easy and spectacular science project.

Radioactive-Looking Slime

The slime you might find in a real Mad Scientist's lab would probably be the result of some horrible genetic mutation. You can make slime that looks radioactive and toxic, yet is actually easy to make and safe. Here's how you do it.

Fizzy Potion Recipe

Make a non-toxic fizzy Mad Scientist potion using ingredients from your kitchen. The potion looks evil, but it is safe enough to drink.

Paramagnetism and Diamagnetism Worked Problem

Here is a worked example problem showing how to tell whether an element is paramagnetic or diamagnetic based on its electron configuration.

Virtual Chemistry Text - Electronic Structure

Electronic Structure: Electrons are found in regions around the nucleus of an atom. Learning about the structure of the electron shell or electron cloud is important for understanding how atoms and ions will form bonds.

Half-Cell Definition

Half-Cell definition, as used in chemistry, chemical engineering, and physics.

Virtual Chemistry Text - Liquids & Gases

Virtual Chemistry Text: Liquids and gases are phases of matter with properties distinctly different from the solid form. Collectively, liquids and solids are termed fluids. The study of fluids and how they interact is important for understanding the properties of matter and predicting the ways in which that matter can react.

Diving Ketchup Magic Trick

Place a ketchup packet in a bottle of water and make it rise and fall at your command, as if by magic. Of course, the magic involves some basic science. Here's how to do the diving ketchup trick and how it works.

High School Chem

Are you confused by all the topics in high school chem class? Here is an overview of what is studied in high school chem, with links to essential chem resources and worked chem problems.

Working from Home in Science

Are you interested in working from home in chemistry or another science? Here are some career options for you and some advice on how to make the transition between a traditional job and a work from home position.

Chemical Structures & Chemistry Images

Find chemistry photos and pictures, including molecular structures, images of glassware, gemstones, safety signs, elements, and famous scientists.

Ionization Energy Definition

Ionization Energy definition, as used in chemistry, chemical engineering, and physics.

Chemist Profile

Take a look at what a chemist is, what a chemist does, and what type of salary and career opportunities you can expect as a chemist.

Chemistry 101 - What Is Chemistry

Start learning chemistry with the basics. Learn what chemistry is, what chemists do, and why it's important to study chemistry.

Mass Definition

Mass definition, as used in chemistry, chemical engineering, and physics.

Potential Energy Definition

Potential Energy definition, as used in chemistry, chemical engineering, and physics.

Matter Definition

Matter definition, as used in chemistry, chemical engineering, and physics.