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A property that depends upon the amount of material in a sample.

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Boron Hydrides

Binary compounds of boron and hydrogen.

Heat of Solution

The amount of heat absorbed in the formation of solution that contains one mole of solute, the value is positive if heat is absorbed (endothermic) and negative if heat is released (exothermic).

Theoretical Yield

Maximum amount of a specified product that could be obtained from specified amounts of reactants, assuming complete consumption of limiting reactant according to only one reaction and complete recovery of product.

Polar Bond

Covalent bond in which there is an unsymmetrical distribution of electron density.

Binary Compound

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

Critical Point

The combination of critical temperature and critical pressure of a substance.

Square Planar

A term used to describe molecules and polyatomic ions that have one atom in the center and four atoms at the corners of a square.

Dumas Method

A method used to determine the molecular weights of volatile liquids.

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.

Alkaline Earth Metals

Group IIA metals