Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive
 

A substance that does not conduct electricity at low temperatures but does so at higher temperatures.

Latest Articles

  • Use of diamonds

    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...

  • Chemistry of the sky

    Chemistry can teach us about the composition of celestial bodies and determine their age.

  • Varieties of garnet minerals

    The most famous type of garnet stone is pyrope (flaming). This is the "oldest of garnets", with a dense red color, similar to the grain of an edible garnet. Pyrope has a variety called rhodolite - a stone of dense pink or pink-purple color, which sometimes has the alexandrite effect and is used in...

  • 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...



Most Popular

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 effective and visual, and as a result we will get something beautiful.

Degenerate

Of the same energy.

Differential Thermometer

A thermometer used for accurate measurement of very small changes in temperature.

Ionization Isomers

Isomers that result from the interchange of ions inside and outside the coordination sphere.

Hydration

Reaction of a substance with water.

Standard Molar Volume

The volume occupied by one mole of an ideal gas under standard conditions, 22.4liters.

Chemistry of the sky

Chemistry can teach us about the composition of celestial bodies and determine their age.

Polarization

The buildup of a product of oxidation or a reduction of an electrode, preventing further reaction.

Equivalence Point

The point at which chemically equivalent amounts of reactants have reacted.

Ternary Acid

A ternary compound containing H, O, and another element, often a nonmetal.