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Describes processes that absorb heat energy.

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Rate-determining Step

The slowest step in a mechanism, the step that determines the overall rate of reaction.

Silicones

Polymeric organosilicon compounds, contain individual or cross-linked Si-O chains or rings in which some oxygens of SiO4 tetrahedra are replaced by other groups.

Anode

In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.

xenon trioxide

A colorless, nonvolatile solid, XeO3, explosive when dry: in solution it is called xenic acid.

Ionic Geometry

The arrangement of atoms (not lone pairs of electrons) about the central atom of a polyatomic ion.

How to make crystal glass

From history we know that the idea of creating crystal belongs to the British: they were the first to add lead oxides to the charge material, and as a result got glass with unusual “voice”, transparency and sparkling faces. Classical crystal contains 24% of lead oxide, but there are products with a higher content of up to 30%.

Thermal Cracking

Decomposition by heating a substance in the presence of a catalyst and in the absence of air.

 

Boron Hydrides

Binary compounds of boron and hydrogen.

Second Law of Thermodynamics

The universe tends toward a state of greater diorder in spontaneous processes.

Ligand

A Lewis base in a coordination compound.