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Any of six isomeric compounds that have the formula C8H11N, are derivatives of xylene, and resemble aniline: used in dye manufacture.

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Law of Partial Pressures (Dalton's Law)

The total pressure exerted by a mixture of gases is the sum of the partial pressures of the individual gases.

Molecular Formula

Formula that indicates the actual number of atoms present in a molecule of a molecular substance.

Law of Definite Proportions (Law of Constant Composition)

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.

Sublimation

The direct vaporization of a sold by heating without passing through the liquid state.

Double Salt

Solid consisting of two co-crystallized salts.

 

Strong Electrolyte

A substance that conducts electricity well in a dilute aqueous solution.

 

Intermolecular Forces

Forces between individual particles (atoms, molecules, ions) of a substance.

Molarity

Number of moles of solute per litre of solution.

Hydrogen-Oxygen Fuel Cell

Fuel cell in which hydrogen is the fuel (reducing agent) and oxygen is the oxidizing agent.

 

Mechanism

The sequence of steps by which reactants are converted into products.