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Chemistry

Articles Index

Chemistry Articles
Collection of chemistry features and articles written by Anne Helmenstine for About Chemistry, listed in reverse chronological order.

What's New at About Chemistry
What's New at About Chemistry - Site Updates & Revisions

History of Chemical Matches
Learn about the history of chemical or friction matches.

Jacobson's Organ and the Sixth Sense
This is an introduction to the human vomeronasal or Jacobson's organ, which is used for sensitive chemical detection.

Absinthe Chemistry
Learn how to make absinthe, and about the liqueur's history and chemistry.

Ricin and RCA
Information about the castor bean toxins ricin and RCA.

Alchemical Symbols of the Elements
See the symbols of the elements and learn how alchemists used them.

How Do Smoke Detectors Work?
Explanation of How Smoke Detectors / Alarms Work - Photoelectric and Ionization Smoke Detectors

Molecules with Strange Names
Molecules with Strange Names - Weird Science

Basketane Molecular Structure
Basketane - Molecules with Strange Names

What's New at About Chemistry
What's New at About Chemistry - Reverse Chronological Archive of Site Updates

What's New at About Chemistry - January to April 2005
Archive of About Chemistry website updates for January through April 2005.

What's New at About Chemistry - September to December 2004
Archive of About Chemistry website updates for September through December 2004.

Chemistry Laboratory Safety Rules
Make your chemistry laboratory experience safe by following these simple rules.

Caffeine Chemistry
Learn about the chemical and biological properties of caffeine, the methylxanthine stimulant found in coffee and other foods.

Fitzroy's Storm Glass
Chemistry behind Darwin's storm glass, with instructions for making your own.

Carbon 14 Dating of Organic Material
Here's a worked example of the calculation for carbon 14 dating of organic material.

Boyle's Law - Worked Chemistry Problems
Boyle's Law - Worked Chemistry Problems

What's New at About Chemistry
Archive of About Chemistry website updates for August 2004.

Turning Lead into Gold
Chemistry Feature Article: Turning Lead into Gold

Chemical Reaction Orders
Learn how to classify chemical reactions using kinetics. Identify and define zero, first, second, mixed, and higher order reactions.

Rules for Assigning Oxidation Numbers
Learn how to assign oxidation numbers to keep track of the distribution of electrons during a chemical reaction.

What's New at About Chemistry
Archive of About Chemistry website updates for July 2004.

What's New at About Chemistry
Archive of About Chemistry website updates for June 2004.

What's New at About Chemistry
Archive of About Chemistry website updates for May 2004.

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