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The law stating that a pure substance will always have the same percent by weight. Different samples of a pure compound always contain the same elements in the same proportions by mass.

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Metallurgy

Refers to the overall processes by which metals are extracted from ores.

Reaction Ratio

The relative amounts of reactants and products involved in a reaction, maybe the ratio of moles. millimoles, or masses.

 

Endothermicity

The absorption of heat by a system as the process occurs.

Tetrahedral

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

Extensive Property

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

Mole Fraction

The number of moles of a component of a mixture divided by the total number of moles in the mixture.

 

Condensed Phases

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

Saponification

Hydrolysis of esters in the presence of strong soluable bases.

Method of Initial Rates

Method of determining the rate-law expression by carrying out a reaction with different initial concentrations and analyzing the resultant changes in initial rates.

Reverse Osmosis

Forcing solvent molecules to flow through a semipermable membrane from a concentated solution into a dilute solution by the application of greater hydrostatic pressure on concentrated side than the osmotic pressure opposing it.