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: Janet Grischy
Clay is useful because it changes. It is plastic and malleable when wet and a potter can shape it to his or her need. After one or two firings, the clay is hard, waterproof, and inflexible. Major types of clay include porcelain, earthenware and...
Converting Fahrenheit to Celsius
By: Louis Rosenfeld
Temperature is measured by the property of liquid expanding when it gets warmer (and contracting when it gets cooler). The original thermometers used mercury (a liquid metal), but since mercury has been discovered to be toxic, alcohol with a red or black dye is more...
The chemical properties of vanadium
By: Chu Chin Kwok
This articles discusses the chemical properties of Vanadium, V only; the physical properties of this element can be found easily in any standard Chemistry textbook. Vanadium, atomic number 23, is a typical transition metal (the transition metals are best represented by elements from Sc...
By: Alison Bowler
It is not often that the scientific world gets a new chemical element. In June 2009, the International Union for Pure and Applied Chemistry (IUPAC) announced its official recognition of element 112. It fell to the discoverers of the element to decide on a new...
Fuel emissions: The difference between diesel and biodiesel exhaust
By: Bradley Wilson
Whether you grew up on a farm or in the city, at one time or another we've all had an up close and personal experience with diesel. Providing economical, reliable power delivery, diesel has powered much of the freedom of movement common to daily...
By: Kyle Everett
Chemistry as we know it today originated from early studies of alchemy and magic. Similar to modern day chemists, alchemists tried to change a certain substance into another; in this case it is gold. Alchemists also searched for secrets to eternal life. Alchemy slowly started...
By: Alison Bowler
The periodic table is a way of organising the chemical elements according to their atomic number and properties. With over 110 elements currently reconized a logical system for the classification of these elements is required. Until the seventeenth century, the views of Aristotle held sway...
An overview about the chemical element Aluminum
By: Jon Clark
Aluminium is a metal that is placed in group 3 of the periodic table - which means that it has 3 electrons in its outer shell. It has a fairly low atomic mass of 27 - resulting in it being a low density metal. It...
Understanding the periodic table
By: Chu Chin Kwok
The study of Chemistry involves the study of the more than 100 chemical elements found on Earth in various quantities. Some elements exist in abundance, some only in traces; some exist as the elements themselves (e.g. gold and other less reactive elements) while...
By: Mark G.
Hydrates can be either inorganic or organic in nature and all have one component in common and that is water. When certain inorganic ionic solids crystallize from aqueous solutions, they combine with a definite amount of water, which becomes a part of the crystalline solid...

 

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