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.
Chemicals found in tobacco smoke
By: Jael Gardiner
It's no secret that cigarettes have harmful health affects and that cigarette smoke contains tons of dangerous chemicals. There are a lot of different types of chemicals inside tobacco smoke, over four thousand different types of chemicals. Some of the chemicals are worse than others...
By: Kenneth Andrews
Superconductors are material with an electrical resistance of zero below a certain temperature. The electrical resistance of conductive materials tends to drop when the temperature is decreased, but even common conductors such as copper will still show some resistance even very close to absolute zero...
By: Amelia Emery
Hydrogen cyanide is one of hundreds of chemicals found in the smoke of cigarettes. This particular chemical is both harmful to the smoker and to those who may inhale the second hand smoke that is present in the air. Hydrogen cyanide is most well known...
By: Kenneth Andrews
Semiconductors are materials which conduct electricity to an extent somewhere between that of a conductive material (copper, iron) and an insulating material (cork, rubber). Any person with any knowledge of semiconductors will know that they are at the heart of modern technology, in computers, phones...
By: Tarek Musslimani
Clinical chemistry is one application of the chemical sciences to medicine. This subject is purely an experimental practice that relies heavily on instrumentation and chemical analytical techniques such as chromatography in all its forms. This discipline of chemistry requires a lot of knowledge and background...
By: Jerome Carter
Ethylene, also known as ethane, is a colorless, flammable gas. Ethylene is widely used in the chemical industry. Ethylene is a necessary ingredient or component in the manufacture of a very wide array of chemicals and products.Ethylene is a hydrocarbon, which simply means that...
By: Allan Taylor
Ethylene is a colorless, odorless gas, composition C2H4, it being the simplest of the alkene hydrocarbons having a double bond, therefore it is classified as an unsaturated hydrocarbon. It is found in trace amounts in Nature (biosynthesis) and plays an important role in the ripening...
By: Nancy Seddens
Metal nanoparticles are at the forefront of various areas of research. A nanoparticle is defined as a particle with at least one dimension less than 100 nm. Although metal nanoparticles can be made from many different metals the primary one used is gold. Gold has...
By: Jerome Carter
Water is a necessity of life. Unfortunately, however, water can carry infectious agents and pollutants that are harmful to people’s health. Waterborne illnesses, caused by bacteria and other micro- organisms, are a serious threat to human health worldwide. In addition industrial pollutants often find...
By: Dr Pandula Siribaddana
Water treatment is the process of recycling or purifying waste water to acceptable levels for end-user consumption. In most instances, such treated water would be released to the environment. However, well-treated water can also be used in industrial activities, recreational activities as well as for...

 

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