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

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Voltage

Potential difference between two electrodes, a measure of the chemical potential for a redox reaction to occur.

Ionic Compounds

Compounds containing predominantly ionic bonding.

Rate-determining Step

The slowest step in a mechanism, the step that determines the overall rate of reaction.

Bond Energy

The amount of energy necessary to break one mole of bonds of a given kind (in gas phase).The amount of energy necessary to break one mole of bonds in a substance, dissociating the sustance in the gaseous state into atoms of its elements in the gaseous state.

Background Radiation

Ratiation extraneous to an experiment. Usually the low-level natural radiation form cosmic rays and trace radioactive substances present in our environment.

Accuracy

How closely a measured value agrees with the correct value.

Metalloids

Elements with properties intermediate between metals and nonmetals: B, Al, Si, Ge, As, Sb, Te, Po, and At.

Limiting Reactant

Substance that stoichiometrically limits the amount of product(s) that can be formed.

Molarity

Number of moles of solute per litre of solution.