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Rods of materials such as cadmium or boron steel that act as neutron obsorbers (not merely moderaters) used in nuclear reactors to control neutron fluxes and therfore rates of fission.

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Mother Nuclide

Nuclide that undergoes nuclear decay.

Molecular Equation

Equation for a chemical reaction in which all formulas are written as if all substances existed as molecules, only complete formulas are used.

Electromotive Series

The relative order of tendencies for elements and their simple ions to act as oxidizing or reducing agents, also called the activity series.

Thermal Cracking

Decomposition by heating a substance in the presence of a catalyst and in the absence of air.

 

Supercritical Fluid

A substance at temperature above its critical temperature.

Double Salt

Solid consisting of two co-crystallized salts.

 

Exothermicity

The release of heat by a system as a process occurs.

Hydrogen-Oxygen Fuel Cell

Fuel cell in which hydrogen is the fuel (reducing agent) and oxygen is the oxidizing agent.

 

Salt and its use in everyday life

Cooking salt is a product that is available in every kitchen, and it’s not as simple as it seems. The history of this product shows that it was valued like gold.

Crystal Lattice

A pattern of arrangement of particles in a crystal.