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An instrument for measuring the amount of salt in a solution. Also,"salimeter, salometer."

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Nuclear Reaction

Involves a change in the composition of a nucleus and can evolve or absorb an extraordinarily large amount of energy.

Avogadro's Law

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

Use of diamonds

Diamond is a crystalline modification of pure carbon formed in the deep interior of the Earth, in the upper mantle at depths of more than 80-100 kilometers, at exceptionally high pressure and temperature. It is the most precious stone, the hardest and most wear-resistant mineral, the most brilliant and timeless gem.

Equation of State

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

Faraday

One faraday of electricity corresponds to the charge on 6.022 x 1023 electrons, or 96,487.301 coulombs.

Metallurgy

Refers to the overall processes by which metals are extracted from ores.

Band

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

Supersaturated Solution

A solution that contains a higher than saturation concentration of solute, slight disturbance or seeding causes crystallization of excess solute.

Dipole

Refers to the separation of charge between two covalently bonded atoms.

Geiger counter

A gas filled tube which discharges electriaclly when ionizing radiation passes through it.