Articles Index

The Aufbau Principle - Electronic Structure and the Aufbau Principle

Stable atoms have as many electrons as they do protons. How do these electrons orient themselves around the nucleus? They fill their electron orbitals by the aufbau principle.

How to Balance Redox Reactions - Balancing Redox Reactions

Step-by-step instructions for balancing redox reactions for conservation of mass and charge in electrochemistry.

How to Perform a Recrystallization

Learn how to perform a recrystallization reaction to purify a solid.

Vitamin C Determination by Iodine Titration

Use this redox-based iodometric titration to determine the amount of Vitamin C or ascorbic acid in juice and other samples.

Clementine Candle

You don't need a wick and wax to make a candle. All you need is a clementine and some olive oil. The clementine acts as a natural wick for the oil. Here's what you do.

Stove Top Frozen Pizza Science Experiment

Are you interested in a fun and edible science experiment? Let's find out whether you can cook a frozen pizza on top of a stove.

Phases of Matter and Phase Diagrams

A phase diagram is a graphical representation between pressure and temperature of a material. Phase diagrams show the state of matter at a given pressure and temperature. They show the boundaries between phases and the processes that occur when the pressure and/or temperature is changed to cross these boundaries. This article outlines what can be learned from a phase diagram.

Five Element Symbols - Wu Xing

These are the symbols of the traditional five elements in Wu Xing and the relationships between these elements in Chinese culture.

How to Make Disappearing Ink

Learn how to make blue or pink ink that will disappear after exposure to air. Tips for restoring the color are also included.

How to Microwave a CD

Microwaving a CD or compact disc produces a stunning display of sparks. It's easy to microwave a CD, but there's a chance of ruining your microwave or harming your health. Here's how to microwave a CD safely.

How to Make Liquid Magnets

Make your own ferrofluid, or liquid magnet, which can be used with a magnet to change the liquid's density and to form spikes and other amazing shapes.

Edible pH Indicators Color Chart

This is a color change chart for edible acid-base or pH indicators.

How to Use a Periodic Table

The periodic table of the elements contains a wide variety of information. Information such as element symbols, atomic number and atomic mass is most common, but some periodic tables can contain even more data than previously expected. This will show you how to use a periodic table to gather information about the elements.

Chan-Lam Coupling Reaction - Named Organic Reactions

This is the general form of a Chan-Lam coupling reaction.

How to Make Nitrous Oxide or Laughing Gas

Nitrous oxide or laughing gas is one of the easiest gases to prepare in the chem lab or home lab. Here are instructions for synthesizing and collection nitrous oxide or laughing gas.