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The prefix used to indicate that groups are located on the same side of a bon about which rotation is restricted.

Latest Articles

  • Creating Malachite egg

    One of the most interesting and obvious chemical experiments is the experiment on the interaction of copper sulfate and calcium carbonate. The latter is contained in the shell of a simple egg, but copper sulphate should be searched in a chemical reagent store. This experience is simple, but...

  • Harmful Chemicals Found In Food

    It's getting close to New Years and many people are starting to think about how to lose those extra pounds they managed to gain over the holidays. There are many sorts of diets and fads that have developed over the years from cutting carbs to cutting protein. Everyone has their own opinion as to...

  • Features of the Scanning Tunneling Microscope

    The scanning tunneling microscope (STM) invented by Heinrich Rohrer and Gerd Binnig in the 1980s still manages to do a great job today and competes with more advanced microscope types. The scanning tunneling microscope is used for studying the surface atoms that are found on various materials. The...

  • Protein Design: Automated protein discovery and synthesis

    In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.

  • The most expensive metal in the world

    Do you think the most expensive metal is gold? No! On earth there are more valuable metals. But we need to divide the value of metals that occur in nature, and metals - isotopes, which are obtained in special laboratories. Let’s look at natural metals first.



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Liquid Aerosol

Colloidal suspension of liquid in gas.

Carbanion

An organic ion carrying a negative charge on a carbon atom.

Electrolyte

A substance whose aqueous solutions conduct electricity.

 

Molecule

The smallest particle of an element or compound capable of a stable, independent existence.

Chemical Hygiene Officer (CHO)

A person or employee who is qualified by training or experience to provide technical guidance in the development and implementations of the provisions of a Chemical Hygiene Plan (CHP)

Condensed Phases

The liquid and solid phases, phases in which particles interact strongly.

Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Reaction Stoichiometry

Description of the quantitative relationships among substances as they participate in chemical reactions.

Cathodic Protection

Protection of a metal (making ir a cathode) against corrosion by attaching it to a sacrifical anode of a more easily oxidized metal.

Mass Spectrometer

An instrument that measures the charge-to-mass ratio of charged particles.