Either the oxidation part or the reduction part of a redox reaction.
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xanthate
A salt or ester of xanthic acid. Many xanthates have a yellow color. Xanthates are used as flotation agents in mineral processing.
Covalent Bond
Chemical bond formed by the sharing of one or more electron pairs between two atoms.
Standard Electrode Potential
By convention, potential, Eo, of a half-reaction as a reduction relative to the standard hydrogen electrode when all species are present at unit activity.
Periodicity
Regular periodic variations of properties of elements with atomic number (and position in the periodic table).
Flammable
A liquid as defined by NFPD and DOT as having a flash point below 37.8°C (100°F).
Dextrorotatory
Refers to an optically active substance that rotates the plane of plane polarized light clockwise, also called dextro.
Gangue
Sand, rock, and other impurities surrounding the mineral of interest in an ore.
Absorption Spectrum
Spectrum associated with absorption of electromagnetic radiation by atoms (or other species) resulting from transitions from lower to higher energy states. An absorption spectrum is the inverse of an emission spectrum.
Hydride
A binary compound of hydrogen.
Creating Malachite egg
One of the most interesting and obvious chemical experiments is the experiment on the interaction of copper sulfate and calcium carbonate. The latter is contained in the shell of a simple egg, but copper sulphate should be searched in a chemical reagent store. This experience is simple, but effective and visual, and as a result we will get something beautiful.
