The pressure required to liquefy a gas (vapor) at its critical temperature.
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Why do copper products change color, and what is the name of the process?
Probably, every person wants to know, why over time the copper turns green and becomes bloomed. This is easy to explain: that film is called patina.
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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...
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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...
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Chemical Safety
People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...
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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...
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Square Planar Complex
Complex in which the metal is in the center of a square plane, with ligand donor atoms at each of the four corners.
Exothermicity
The release of heat by a system as a process occurs.
Nodal Plane
A region in which the probability of finding an electron is zero.
Molecular Formula
Formula that indicates the actual number of atoms present in a molecule of a molecular substance.
Clay
A class of silicate and aluminosilicate minerals with sheet-like structures that have enormous surface areas that can absorb large amounts of water.
Alkali Metals
Metals of Group IA (Na, K, Rb).
Quantum Mechanics
Mathematical method of treating particles on the basis of quantum theory, which assumes that energy (of small particles) is not infinitely divisible.
Dissociation
In aqueous solution, the process in which a solid ionic compound separates into its ions.
Electromagnetic Radiation
Energy that is propagated by means of electric and magnetic fields that oscillate in directions perpendicular to the direction of travel of the energy.
Half-Life
The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.
