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Substances that flow freely, gases and liquids.

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Physical Change

A change in which a substance changes from one physical state to another but no substances with different composition are formed. Example Gas to Liquid - Solid.

 

Inert s-pair Effect

Characteristic of the post-transition minerals, tendency of the outermost s electrons to remain nonionized or un shared in compounds.

Nonelectrolyte

A substance whose aqueous solutions do not conduct electricity.

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.

Dipole Moment

The product of the distance separating opposite charges of equal magnitude of the charge, a measure of the polarity of a bond or molecule, a measured dipole moment refers to the dipole moment of an entire molecule.

Amphiprotism

Ability of a substance to exhibit amphiprotism by accepting donated protons.

Density

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

Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Calorimeter

A device used to measure the heat transfer between system and surroundings.

Equilibrium or Chemical Equilibrium

A state of dynamic balance in which the rates of forward and reverse reactions are equal, the state of a system when neither forward or reverse reaction is thermodynamically favored.