A highly reactive chemical species carrying no charge and having a single unpaired electron in an orbital.
Latest Articles
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Gas of rotten eggs
If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.
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Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
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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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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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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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Bronsted-Lowry Acid
A proton donor.
Eluant or eluent
The solvent used in the process of elution, as in liquid chromatography.
S Orbital
A spherically symmetrical atomic orbital, one per energy level.
Periodic Law
The properties of the elements are periodic functions of their atomic numbers.
Percent Purity
The percent of a specified compound or element in an impure sample.
How to keep flowers in a vase for long time
The best gift for a woman, as you know, is a beautiful bouquet of flowers. But the cut flowers at home quite quickly wither. But your favorite roses or tulips can keep their freshness if you use our advice. Chemistry and various chemical elements will help us in this difficult matter!
Ionization Energy
The minimum amount of energy required to remove the most loosely held electron of an isolated gaseous atom or ion.
Composition Stoichiometry
Descibes the quantitative (mass) relationships among elements in compounds.
Equilibrium Constant
A quantity that characterizes the position of equilibrium for a reversible reaction, its magnitude is equal to the mass action expression at equilibrium. K varies with temperature.
Ore
A natural deposit containing a mineral of an element to be extracted.
