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The percent of a specified compound or element in an impure sample.

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    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...

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    Diamond is a crystalline modification of pure carbon formed in the deep interior of the Earth, in the upper mantle at depths of more than 80-100 kilometers, at exceptionally high pressure and temperature. It is the most precious stone, the hardest and most wear-resistant mineral, the most...

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Faraday

One faraday of electricity corresponds to the charge on 6.022 x 1023 electrons, or 96,487.301 coulombs.

Density

Density is the ratio b/w Mass and Volume: D=M/V

Cathode

Electrode at which reduction occurs in a cathode ray tube, the negative electrode.

Rate-determining Step

The slowest step in a mechanism, the step that determines the overall rate of reaction.

Coordination Compound or Complex

A compound containing coordinate covalent bonds.

Fat

Solid triester of glycerol and (mostly) saturated fatty acids.

Polymerization

The combination of many small molecules to form large molecules.

Explosive

A chemical or compound that causes a sudden, almost instantaneous release or pressure, gas, heat and light when subjected to sudden shock, pressure, high temperature or applied potential.

Essential Oil

A plant extract that has a distinctive odour or flavour.

Electrical Conductivity

Ability to conduct electricity.