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A colorless, crystalline pentose sugar, C5H10O5, derived from xylan, straw, corncobs, etc., by treating with heated dilute sulfuric acid, and dehydrating to furfural if stronger acid is used.

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Debye

The unit used to express dipole moments.

Single Bond

Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.

Electrolytic Conduction

Conduction of electrical current by ions through a solution or pure liquid.

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.

Tyndall Effect

The scattering of light by colloidal particles.

Diagonal Similarities

Refers to chemical similarities in the Periodic Table of elements of Period 2 to elements of Period 3 one group to the right, especially evident toward the left of the periodic table.

Formula Unit

The smallest repeating unit of a substance. The molecule for nonionic substances

Salt and its use in everyday life

Cooking salt is a product that is available in every kitchen, and it’s not as simple as it seems. The history of this product shows that it was valued like gold.

Isoelectric

Having the same electronic configurations.

Cathode Ray Tube

Closed glass tube containing a gas under low pressure, with electrodes near the ends and a luminescent screen at the end near the positive electrode, produces cathode rays when high voltage is applied.