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An equation that describes the behavior of matter in a given state, the van der Waals equation describes the behavior of the gaseous state.

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Atomic Number


Integral number of protons in the nucleus, defines the identity of element.
 

Law of Conservation of Matter

There is no detectable change in the quantity of matter during an ordinary chemical reaction.

Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Degenerate

Of the same energy.

Coefficient of expansion

The ratio of the change in length or volumen of a body to the original lengthor volume for a unit change in temperature.

Atomic Radius

Radius of an atom.

Nuclear Fission

The process in which a heavy nucleus splits into nuclei of intermediate masses and one or more protons are emitted.

Activation Energy

Amount of energy that must be absorbed by reactants in their ground states to reach the transition state so that a reaction can occur. In other words, activation energy is the minimum energy required for a chemical reaction to occur.

Transition State Theory

Theory of reaction rates that states that reactants pass through high-energy transition states before forming products.

Band

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

D-Orbitals

Beginning in the third energy level, aset of five degenerate orbitals per energy level, higher in energy than s and p orbitals of the same energy level.

 

Strong Electrolyte

A substance that conducts electricity well in a dilute aqueous solution.

 

Nuclear Reactor

A system in which controlled nuclear fisson reactions generate heat energy on a large scale, which is subsequently converted into electrical energy.

Avogadro's Number

The number (6.022x10^23) of atoms, molecules or particles found in exactly 1 mole of substance.

Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Accuracy

How closely a measured value agrees with the correct value.

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."

Electrochemistry

Study of chemical changes produced by electrical current and the production of electricity by chemical reactions.

Coordination Isomers

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

Boiling Point Elevation

The increase in the boiling point of a solvent caused by the dissolution of a nonvolatile solute.