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Amount of a specified pure product actually obtained from a given reaction. Compare with Theoretical Yield.

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Amorphous Solid

A noncrystalline solid with no well-defined ordered structure.

Pairing Energy

Energy required to pair two electrons in the same orbital.

Nuclear Reaction

Involves a change in the composition of a nucleus and can evolve or absorb an extraordinarily large amount of energy.

Fat

Solid triester of glycerol and (mostly) saturated fatty acids.

Nodal Plane

A region in which the probability of finding an electron is zero.

 

Heat of Solution

The amount of heat absorbed in the formation of solution that contains one mole of solute, the value is positive if heat is absorbed (endothermic) and negative if heat is released (exothermic).

Alpha Particles

A helium nucleus.

Resonance

The concept in which two or more equivalent dot formulas for the same arrangement of atoms (resonance structures) are necessary to describe the bonding in a molecule or ion.

Coordination Isomers

Isomers involving exchanges of ligands between complex cation and complex anion of the same compound.

Boyle's Law

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