Chemistry

Every moment of every day, chemistry plays a part in all we experience. This branch of the Helium network humbly attempts to illuminate the vast array of chemical knowledge, making it accessible to all. Let our site inform, inspire, and awe you with chemical wonders.
By: N. David
Aerogels are not an exotic type of gel. An aerogel is a solid, highly porous material, with a number of very special properties. The high volume of pores in an aerogel give it very low density and very light weight, as the material is mostly...
Common examples of chemical changes
By: Mishra Planeswalker
Chemical changes are of the utmost importance to modern society. We see evidence of them every day, from the most mundane and pedestrian to the highly complex and analytical reactions performed in high-tech labs. Chemical changes occur whenever the chemical makeup of substances is altered...
By: N. David
Of the millions of chemical compounds that make up the universe, the vast majority contain carbon. The Chemistry Explained website estimates that more than 95 percent of all known compounds are carbon compounds. What is it that makes carbon the basis for so many chemical...
By: N. David
The US Environmental Protection Agency defines green chemistry as "chemicals and chemical processes designed to reduce or eliminate negative environmental impacts." This can be achieved through "reduced waste products, non-toxic components, and improved efficiency." In other words, rather than focusing on methods for...
Chemistry science fair projects: Generating hydrogen from various sources
By: Brian Dodson
Hydrogen is a fascinating chemical element. In addition to being the most common element in the Universe, hydrogen is found in water and most organic molecules. Because the light of the Sun is generated by nuclear fusion of hydrogen, it is fair to say that...
Miniature chemistry: Lab on a chip
By: Brian Dodson
Chemical and biological detection, analysis, and synthesis capabilities are of increasing importance for applications that include environmental analysis and remediation, process monitoring, emissions monitoring and control, medical tests, forensics and detection of chemical and biological weapons. Many of these applications are best done on site...
Aviation Technology: Understanding jet engine metallurgy
By: Brian Dodson
To understand the capbilities of modern jet engines, it is not sufficient to explain how jet engines work. The issue is rather how the most sophisticated materials of the day allow operation in the extreme conditions of temperature, mechanical loading, and corrosive resistant that is...
Parts of an atom: Electrons
By: Mishra Planeswalker
Most of modern physical science, including modern chemistry and physics is based off of the concept of the electron. Simply put, an electron is a subatomic particle that is so small that many people consider them to be point masses, that is they are virtually...
Common examples of ionic bonds and bonding
By: Mishra Planeswalker
The process of ionic bonding is one that is fundamentally important to our known universe, and it is a vital part of everyday life. Ionic bonds are a special type of bond that bonds two atoms together. These atoms must be a metal and a...
Beginner's guide to copper electroplating
By: Brian Dodson
Electroplating is a widely used technique to deposit a layer of a first metal on an object made of a second metal. The discovery of the Parthian batteries suggests that electroplating may have been developed some 1500 years ago in Mesopotamia. However, the first solid...

 

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