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The product of pressure and the volume of an ideal gas is directly proportional to the number of moles of the gas and the absolute temperature.

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Chemical Kinetics

The study of rates and mechanisms of chemical reactions and of the factors on which they depend.

Ionic Compounds

Compounds containing predominantly ionic bonding.

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Natural Radioactivity

Spontaneous decomposition of an atom.

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.

Line Spectrum

An atomic emission or absorption spectrum.

Film badge

A small patch of photographic film worn on clothing to detect and measure accumulated incident ionizing radiation.

Ketone

Compound in which a carbonyl group is bound to two alkyl or two aryl groups, or to one alkyl and one aryl group.

Alpha Particles

A helium nucleus.

Solubility Product Principle

The solubility product constant expression for a slightly soluble compound is the product of the concentrations of the constituent ions, each raised to the power that corresponds to the number of ions in one formula unit.