A catalyst that exists in a different phase (solid, liquid or gas) from the reactants, a contact catalyst.
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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...
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Protein Design: Automated protein discovery and synthesis
In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.
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Ozone
We breathe 24 hours a day, 7 days a week, consuming about 25 kg of air every day. It turns out that we practically predetermine our health by the air we breathe.
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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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What are Compound Microscopes?
Most of the microscopes used today are compound. A compound microscope features two or more lenses. A hollow cylinder called the tube connects the two lenses. The top lens, the one people look through, is called the eyepiece. The bottom lens is known as the objective lens. Below the two lenses is...
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Dispersed Phase
The solute-like species in a colloid.
Handmade crystal glass as a work of art
In order for the colored crystal to open in all its beauty and sparkle with every face natural light is required. Handmade crystal glass has specific tactile and aesthetic properties - it is pleasant to touch, it seems to radiate heat. To appreciate the quality and beauty of such things, of course, it is not enough to look at the picture.
Reducing Agent
The substance that reduces another substance and is oxidized.
Basic Anhydride
The oxide of a metal that reacts with water to form a base.
Law of Conservation of Matter and Energy
The total amount of matter and energy available in the universe is fixed.
Salinometer
An instrument for measuring the amount of salt in a solution. Also,"salimeter, salometer."
Nodal Plane
A region in which the probability of finding an electron is zero.
Pairing
A favourable interaction of two electrons with opposite m , values in the same orbital.
Ternary Compound
A compound consisting of three elements, may be ionic or covalent.
Nitrogenases
A class of enzymes found in bacteria within root nodules in some plants, which catalyze reactions by which N2 molecules from the air are converted to ammonia.
