Double bonds that are separated from each other by one single bond -C=C-C=C-.
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Band
A series of very closely spaced, nearly continuous molecular orbitals that belong to the crystal as a whole.
Cohesive Forces
All the forces of attraction among particles of a liquid.
Alpha Particles
A helium nucleus.
Flux
A substance added to react with the charge, or a product of its reduction, in metallurgy, usually added to lower a melting point.
Hydrogen Bond
A fairly strong dipole-dipole interaction (but still considerably weaker than the covalent or ionic bonds) between molecules containing hydrogen directly bonded to a small, highly electronegative atom, such as N, O, or F.
Atmosphere
A unit of pressure, the pressure that will support a column of mercury 760 mm high at 0 °C.
Formula Weight
The mass of one formula unit of a substance in atomic mass units.
Avogadro's Law
At the same temperature and pressure, equal volumes of all gases contain the same number of molecules.
Solvent
The dispersing medium of a solution.
Alkaline Battery
A dry cell in which the electrolyte contains KOH.
