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A physical state of matter which exists at extremely high temperatures in which all molecules are dissociated and most atoms are ionized.

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Polyene

A compound that contains more than one double bond per molecule.

Bonding Pair

Pair of electrons involved in a covalent bond.

Allotropes

Different forms of the same element in the same physical state.

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.

Fractional Distillation

The process in which a fractioning column is used in distillation apparatus to separate components of a liquid mixture that have different boiling points.

Buret

A piece of volumetric glassware, usually graduated in 0.1-mL intervals, that is used to deliver solutions to be used in titrations in a quantitative (dropwise) manner.

Explosive

A chemical or compound that causes a sudden, almost instantaneous release or pressure, gas, heat and light when subjected to sudden shock, pressure, high temperature or applied potential.

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.

Solubility Product Constant

Equilibrium constant that applies to the dissolution of a slightly soluble compound.

First Law of Thermodynamics

The total amount of energy in the universe is constant (also known as the Law of Conservation of Energy) energy is neither created nor destroyed in ordinary chemical reactions and physical changes.