People have been brewing beer for millennia, and the basic chemistry of fermentation is well understood. But thanks to advanced analytical techniques, scientists continue to learn more about the many ...

Researchers have identified the ingredients in chemistry formulas from an 2,300-year-old Chinese text, revealing ancient metallurgy was more complex than expected. The Kaogong ji was written in China ...

Chemical Reactions - Ionic Formula Writing: Students learn how to write formulas. Chemical Reactions - Ionic Formula Writing Students learn how to write formulas for a variety of ionic compounds ...

A useful (although not flawless) reference for chemistry students, this app includes a very nicely annotated periodic table that displays many properties beyond just the atomic weight of each element ...

It seems like every other day we hear about some hacker, tinkerer, maker, coder or one of the many other Do-It-Yourself engineer types getting their hands into a complex field once reserved to only a ...

In 1923, the year C&EN was born, Gilbert N. Lewis of the University of California, Berkeley, published a book titled “Valence and the Structure of Atoms and Molecules.” In the text, Lewis laid out the ...

While we refer to substances by their common names in everyday life, all these substances have a chemical name and a chemical formula that scientists and researchers use. The system of chemical naming ...

Sand is a granular material composed of fine mineral particles. Sand comes from different sources, locations, and environments. Sand is formed when rocks break down from weathering and erosion over ...