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A form of energy that flows between two samples of matter because of their differences in temperature.

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Gem-dimethyl group

Two methyl groups of the same carbon atom.

Conduction Band

A partially filled band or a band of vacant energy levels just higher in energy than a filled band, a band within which, or into which, electrons must be promoted to allow electrical conduction to occur in a solid.

Ampere

Unit of electrical current, one ampere equals one coulomb per second.

 

Radiation

High energy particles or rays emitted during the nuclear decay processes.

Dilution

Process of reducing the concentration of a solute in solution, usually simply by mixing with more solvent.

Dissociation

In aqueous solution, the process in which a solid ionic compound separates into its ions.

Alpha (a) Particle

Helium ion with 2+ charge, an assembly of two protons and two neutrons.

Chemistry of the sky

Chemistry can teach us about the composition of celestial bodies and determine their age.

Law of Conservation of Matter and Energy

The total amount of matter and energy available in the universe is fixed.

Coordinate Covalent Bond

A covalent bond in which both shared electrons are donated by the same atom, a bond between a Lewis base and a Lewis acid.