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The range of concentrations over which a flammable vapour mixed with proper ratios of air will ignite or explode if a source of ignitions is provided.

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Colligative Properties

Physical properties of solutions that depend upon the number but not the kind of solute particles present.

Ore

A natural deposit containing a mineral of an element to be extracted.

Hydrate

A solid compound that contains a definite percentage of bound water.

Hybridization

Mixing a set of atomic orbitals to form a new set of atomic orbitals with the same total electron capacity and with properties and energies intermediate between those of the original unhybridized orbitals.

Boron Hydrides

Binary compounds of boron and hydrogen.

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.

Ideal Gas Law

The product of pressure and the volume of an ideal gas is directly proportional to the number of moles of the gas and the absolute temperature.

Stereoisomers

Isomers that differ only in the way that atoms are oriented in space, consist of geometrical and optical isomers.

 

Accuracy

How closely a measured value agrees with the correct value.

Emulsion

Colloidal suspension of a liquid in a liquid.