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Compounds that contain more than two elements but are named like binary compounds.

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Salinometer

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

Ideal Gas

A hypothetical gas that obeys exactly all postulates of the kinetic-molecular theory.

 

Electron

A subatomic particle having a mass of 0.00054858 amu and a charge of 1-.

Crystalline Solid

A solid characterized by a regular, ordered arrangement of particles.

Denatured

A commercial term used to describe ethanol that has been rendered unfit for human consumption because of the addition of harmful ingredients to make it sales tax-expempt.

 

Isomers

Different substances that have the same formula.

Dry Cells

Ordinary batteries (voltaic cells) for flashlights. radios, and so on, many are Leclanche cells.

Alpha Particles

A helium nucleus.

Ionization Energy

The minimum amount of energy required to remove the most loosely held electron of an isolated gaseous atom or ion.

Curie (Ci)

The basic unit used to describe the intensity of radioactivity in a sample of material. One curie equals 37 billion disintegrations per second or approximately the amount of radioactivty given off by 1 gram of radium.