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A compound formed by interaction of sucrose with a metallic oxide, usually lime, and useful in the purification of sugar.

 

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Flash Point

The temperature at which a liquid will yield enough flamable vapour to ignite. There are various recognized industrial testing methods, therefore the method used must be stated.

Periodicity

Regular periodic variations of properties of elements with atomic number (and position in the periodic table).

Levorotatory

Refers to an optically active substance that rotates the plane of plane polarized light counterclockwise, also called levo.

Differential Thermometer

A thermometer used for accurate measurement of very small changes in temperature.

Oxidizing Agent

The substance that oxidizes another substance and is reduced.

Homonuclear

Consisting of only one element.

Nonelectrolyte

A substance whose aqueous solutions do not conduct electricity.

Activation Energy

Amount of energy that must be absorbed by reactants in their ground states to reach the transition state so that a reaction can occur. In other words, activation energy is the minimum energy required for a chemical reaction to occur.

Binary Compound

A compound consisting of two elements, may be ionic or covalent.

Ionic Geometry

The arrangement of atoms (not lone pairs of electrons) about the central atom of a polyatomic ion.