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.
Why carbon is the basis for so many compounds
By: Madhusoodanan K.P
Due to its atomic structure as well as chemical and physical properties, carbon is a very unique non metallic element in nature. It has an atomic number of 6; atomic weight of 12.01 and a melting point of 360ºC. As part of its...
Everyday examples of gases
By: Mishra Planeswalker
A gas is the third state of matter, where inter-molecular bonds are few and far between. This means that gas molecules are free to move around, rotating, vibrating, and translate themselves through space. Gasses are usually invisible, which means that many people may not know...
What causes a change in the state of matter
By: Mishra Planeswalker
Have you ever wondered why when the temperature is -10 degrees Celcius, you may still find liquid water? Or why does a bot of boiling water not completely evaporate when its temperature reaches 100 degrees Celcius? The answer to these problems and many more is...
Defining chemical reactants
By: Mishra Planeswalker
Every minute of every day in our physical universe, chemicals react with one another. Some of these are beneficial to humanity and save lives, while others have the potential to destroy entire empires and civilizations. A chemical reaction is a simple process whereby one or...
By: Rick Bavera
Gold: Royalty among the Elements Gold has been known since prehistoric times, and is mined on all continents except Antarctica. It has been highly valued and treasured ever since its prehistoric discovery. Because of its relative rarity (it is the 75th most common element) and...
By: Ian Farquharson
Most people generally know about the precious metal silver through rings, necklaces and other pieces of jewelry and this is one of the common uses of the metal. However it can be also be utilized for many other purposes and is a metal that has...
By: Virginia Gaces
Quality assurance encompasses four stages of laboratory analyses: patient identification, patient and sample preparation, testing or assaying and reporting or recording of results. Quality control specifically used in the third stage of quality assurance testing, is a valuable tool in the proper performance of laboratory...
By: Virginia Gaces
To ensure proper measurement of large volumes in the laboratory, volumetric apparatus should be calibrated regularly. Two of the most common apparatus calibrated are volumetric flasks and serological pipettes. This is a simple, manual procedure on how to calibrate volumetric apparatus: Volumetric flask: Weigh the...
How to perform a titration
By: Mishra Planeswalker
Performing a titration is one of the most essential processes that is performed in laboratories by modern chemists. Simply put, a titration is a very controlled reaction where the presence of one reagent is limited meticulously. When performed correctly, a titration will allow a chemist...
Determining the reactivity of alkaline earth metals
By: Alison Bowler
The Alkaline Earth metals form Group 2 of the Periodic table. Group 2 is the International Union for Pure and Applied Chemistry (IUPAC) preferred nomenclature but other versions of the table may use 2A or IIA. The seven elements forming the alkaline earth metal group...

 

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