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The rotation of plane polarized light by one of a pair of optical isomers.

 

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Precipitate

An insoluble solid formed by mixing in solution the constituent ions of a slightly soluble solution.

Standard Reaction

A reaction in which the numbers of moles of reactants shown in the balanced equation, all in their standard states, are completely converted to the numbers of moles of products shown in the balanced equation, also sall at their standard state.

Band

A series of very closely spaced, nearly continuous molecular orbitals that belong to the crystal as a whole.

All Chemicals - Chemical Glossary

The Chemical Glossary currently has 651 chemical entries. You may search the Chemical Glossary by entering the keyword in the search box or by browsing the entire chemical glossary by letter in alphabetical order.

Chemical Equation

Description of a chemical reaction by placing the formulas of the reactants on the left and the formulas of products on the right of an arrow.

Lone Pair

Pair of electrons residing on one atom and not shared by other atoms, unshared pair.

Heteronuclear

Consisting of different elements.

Basic Salt

A salt containing an ionizable OH group.

Delocalization

Of electrons, refers to bonding electrons that are distributed among more than two atoms that are bonded together, occurs in species that exhibit resonance.
The formation of a set of molecular orbitals that extend over more than two atoms, important in species that valence bond theory describes in terms of resonance.

Law of Definite Proportions (Law of Constant Composition)

The law stating that a pure substance will always have the same percent by weight. Different samples of a pure compound always contain the same elements in the same proportions by mass.