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The drawing of a liquid up the inside of a small-bore tube when adhesive forces exceed cohesive forces, or the depression of the surface of the liquid when cohesive forces exceed the adhesive forces.

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Secondary Voltaic Cells

Voltaic cells that can be recharged, original reactanats can be regenerated be reversing the direction of the current flow.

Lead Storage Battery

Secondary voltaic cell used in most automobiles.

Free Energy, Gibbs Free Energy

The thermodynamic state function of a system that indicates the amount of energy available for the system to do useful work at constant T and P.

Natural Radioactivity

Spontaneous decomposition of an atom.

Binary Acid

A binary compound in which H is bonded to one or more of the more electronegative nonmetals.

Kinetic-molecular Theory

A theory, that attempts to explain macroscopic observations on gases in microscopic observations on gases in microscopic observations on gases in microscopic or molecular terms.

Conjugate Acid-base Pair

In Bronsted-Lowry terminology, a reactant and product that differ by a proton, H+.

Condensed Phases

The liquid and solid phases, phases in which particles interact strongly.

Density

Density is the ratio b/w Mass and Volume: D=M/V

Barometer

A device for measuring pressure.

Radioactive Dating

Method of dating ancient objects by determining the ratio of amounts of mother and daughter nuclides present in an object and relating the ratio to the object?s age via half-life calculations.

Composition Stoichiometry

Descibes the quantitative (mass) relationships among elements in compounds.

Homogeneous Mixture

A mixture which has uniform composition and properties throughout.

Hydration

Reaction of a substance with water.

Central Atom

An atom in a molecule or polyatomic ion that is bonded to more than one other atom.

Heterogeneous Equilibria

Equilibria involving species in more than one phase.

Nuclide Symbol

Symbol for an atom A/Z E, in which E is the symbol of an element, Z is its atomic number, and A is its mass number.

Evaporation Rate

The rate at which a particular substance will vapourize (evaporate) when compared to the rate of a known substance such as ethyl ether. This term is especially useful for health and fire-hazard considerations.

Differential Scanning Calorimetry (DSC)

A technique for measuring the temperature, direction, and magnitude of thermal transitions in a sample material by heating/cooling and comparing the amount of energy required to maintain its rate of temperature increase or decrease with an inert reference material under similar conditions.

Catenation

Bonding of atoms of the same element into chains or rings.
The bonding together of atoms of the same element to form chains.
The ability of an element to bond to itself.