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.
What properties define gases?
By: D. Vogt
Gas is a basic state of matter, along with solids, liquids, and plasma. Gases have higher energy than solids or liquids, and are characterized by molecules that move freely, and by their capacity to expand to fill any container they are placed in. Many of...
Interesting facts about iron
By: James Johnson
There was the Iron age, which was the dawn of civilization, and the Iron Man refers to an athletic competition that is really tough. There is also the Iron Maiden for torture. With all this reference to iron, what exactly is iron and why is...
What properties define liquids?
By: D. Vogt
Liquids are one of the four phases or states of matter, along with solids, gases, and plasma. Liquids will always flow in order to fit the shape of the container they are poured into. This makes them like a gas. However, like a solid, liquids...
What is atomic weight?
By: D. Vogt
Atomic weight refers to the mass of an average atom of a particular element. This weight is calculated by adding together the number of protons and neutrons in the average nucleus (electrons, which also form an atom, are of extremely low mass and are therefore...
Explaining Rutherford's atomic theory
By: D. Vogt
Between 1909 and 1911, British chemist Ernest Rutherford developed a new theoretical model of the atom which overturned existing hypotheses and became the dominant means of understanding these basic building blocks of all matter for most of the twentieth century. Although several components of the...
Explaining why ice floats
By: D. Vogt
Fortunately for life on Earth, water is a unique compound: it actually gets less dense when it freezes. This is unusual in the physical universe: as a general rule, all chemicals are at their densest when they freeze, grow less dense as liquids, and finally...
Difference between potential and kinetic energy
By: D. Vogt
Energy can be said to exist in, among other forms, two basic forms: potential and kinetic. Potential energy is essentially stored energy: energy which exists within the position of elements of a system. Through work, this stored or potential energy may then be transformed into...
Interesting facts about argon
By: James Johnson
Argon is an element and a noble gas, difficult to make into and keep as a liquid. Saying something is a "Noble Gas" means that it is almost always a vapor, "stands alone" and mixes with very little else, and was considered similar to the...
What properties define a solid?
By: D. Vogt
Solid is one of the states of matter, alongside liquid, gas, and plasma. A solid is the lowest-energy and usually densest form of matter, characterized by molecules which are closely packed together; solids hold their shape in normal conditions, and have a fixed volume based...
Interesting facts about sulfur
By: James Johnson
Elements are the basic building blocks of all substances and many elements have very interesting facts about them, many of which are little known. One such element is Sulfur, also spelled as Sulphur in British Schools (though the Royal Society of Chemistry states the Sulfur...

 

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