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At constant temperature the volume occupied by a definite mass of a gas is inversely proportional to the applied pressure.

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Saccharic

of or derived from saccharin or a saccharine substance.

 

Coulomb

Unit of electrical charge.

Aromatic Hydrocarbons

Benzene and its derivatives.

Equilibrium or Chemical Equilibrium

A state of dynamic balance in which the rates of forward and reverse reactions are equal, the state of a system when neither forward or reverse reaction is thermodynamically favored.

Atomic Weight

Weighted average of the masses of the constituent isotopes of an element, The relative masses of atoms of different elements.

yttrium metal

Any of a subgroup of rare-earth elements, of which the cerium and terbium metals comprise the other two subgroups.

Ampere

Unit of electrical current, one ampere equals one coulomb per second.

 

Lanthanides

Elements 58 to 71 (after lanthanum).

Flux

A substance added to react with the charge, or a product of its reduction, in metallurgy, usually added to lower a melting point.

Acyl Group

Compound derived from a carbonic acid by replacing the --OH group with a halogen (X), usually --Cl, general formula is O R--C--X.