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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.

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Born-Haber Cycle

A series of reactions (and accompanying enthalpy changes) which, when summed, represents the hypothetical one-step reaction by which elements in their standard states are converted into crystals of ionic compounds (and the accompanying enthalpy changes.)

Density

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

Rate of Reaction

Change in the concentration of a reactant or product per unit time.

Supercooled Liquids

Liquids that, when cooled, apparently solidify but actually continue to flow very slowly under the influence of gravity e.g glass.

Overlap

The interaction of orbitals on different atoms in the same region of space.

Half-Reaction

Either the oxidation part or the reduction part of a redox reaction.

Mass

A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

Mechanism

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

Dispersing Medium

The solvent-like phase in a colloid.

Potential Energy

Energy that matter possesses by virtue of its position, condition or composition.