A solid compound that contains a definite percentage of bound water.
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Interesting facts about metals
Metals have been used by people since ancient times. All the time the process of obtaining them was improved, useful alloys of various metals appeared. Let’s look at interesting facts about metals.
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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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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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Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
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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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Semipermable Membrane
A thin partition between two solutions through which certain molecules can pass but others cannot.
Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
Substitution Reaction
A reaction in which an atom or a group of atoms is replaced by another atom or group of atoms.
Electrodes
Surfaces upon which oxidation and reduction half-reactions, occur in electrochemical cells.
Group
A vertical column in the periodic table, also called a family.
Ionization Constant
Equilibrium constant for the ionization of a weak electrolyte.
Nonpolar Bond
Covalent bond in which electron density is symmetrically distributed.
Mechanism
The sequence of steps by which reactants are converted into products.
Strong Electrolyte
A substance that conducts electricity well in a dilute aqueous solution.
Boron Hydrides
Binary compounds of boron and hydrogen.
