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A compound that contains more than one double bond per molecule.

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Standard Electrodes

Half-cells in which the oxidized and reduced forms of a species are present at unit activity, 1.0M solutions of dissolved ions, 1.0atm partial pressure of gases, and pure solids and liquids.

Energy

The capacity to do work or transfer heat.

Alkenes (Olefins)

Unsaturated hydrocarbons that contain one or more carbon-carbon double bonds.

Amphiprotism

Ability of a substance to exhibit amphiprotism by accepting donated protons.

Particulate Matter

Fine divided solid particles suspended in polluted air.

Activity Series

A listing of metals (and hydrogen) in order of decreasing activity.

Catalyst

A substance that speeds up a chemical reaction without being consumed itself in the reaction.
A substance that alters (usually increases) the rate at which a reaction occurs.

Homogeneous Catalyst

A catalyst that exists in the same phase (solid, liquid or gas) as the reactants. The process is called Homogeneous Catalysis.

Photon

A packet of light or electromagnetic radiation, also called quantum of light.

 

Saccharic acid

A white, needlelike, crystalline, water-soluble solid or syrup, C6H10O8, usually made by the oxidation of cane sugar, glucose, or starch by nitric acid. Also called "Glucaric acid."

Molecular Geometry

The arrangement of atoms (not lone pairs of electrons) around a central atom of a molecule or polyatomic ion.

Reversible Reaction

Reactions that do not go to completion and occur in both the forward and reverse direction.

Crystal Field Stabilization Energy

A measure of the net energy of stabilization gained by a metal ion's nonbonding d electrons as a result of complex formation.

Homogeneous Equilibria

Equilibria involving only one species in a single phase. For example, all gases, all liquids or all solids.

Potential Energy

Energy that matter possesses by virtue of its position, condition or composition.

Avogadro's Law

At the same temperature and pressure, equal volumes of all gases contain the same number of molecules.

Nitrogen Cycle

The complex series of reactions by which nitrogen is slowly but continually recycled in the atmosphere, lithosphere and hydrosphere.

 

Calorimeter

A device used to measure the heat transfer between system and surroundings.

Percent Composition

The mass percent of each element in a compound.

Formula Weight

The mass of one formula unit of a substance in atomic mass units.