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Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.

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Nuclear Fission

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

Specific Rate Constant

An experimentally determined (proportionality) constant, which is different for different reactions and which changes only with temperature, k in the rate-law expression: Rate = k [A] x [B]v.

Halogens

Group VIIA elements: F, Cl, Br, I

Neutralization

The reaction of an acid with a base to form a salt and water. Usually, the reaction of hydrogen ions with hydrogen ions to form water molecules.

Chemical Hygiene Plan (CHP)

A written program developed and implemented by an employer designating proceedures, equipment, personal protective equipment, and work practices that are capable of protecting employees from the health hazards presented by hazardous chemicals usid in that particular workplace.

Manometer

A two-armed barometer.

Atomic Number


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

Saturated Solution

Solution in which no more solute will dissolve.

Quantum Mechanics

Mathematical method of treating particles on the basis of quantum theory, which assumes that energy (of small particles) is not infinitely divisible.

Supercritical Fluid

A substance at temperature above its critical temperature.