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Photochemically produced oxidizing agents capable of causing damage to plants and animals.

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Octet Rule

Many representative elements attain at least a share of eight electrons in their valence shells when they form molecular or ionic compounds, there are some limitations.

Percent Purity

The percent of a specified compound or element in an impure sample.

Standard Reaction

A reaction in which the numbers of moles of reactants shown in the balanced equation, all in their standard states, are completely converted to the numbers of moles of products shown in the balanced equation, also sall at their standard state.

Eluant or eluent

The solvent used in the process of elution, as in liquid chromatography.

 

Oxide

A binary compound of oxygen.

Heterogeneous Equilibria

Equilibria involving species in more than one phase.

Ternary Acid

A ternary compound containing H, O, and another element, often a nonmetal.

Distilland

The material in a distillation apparatus that is to be distilled.

Dispersed Phase

The solute-like species in a colloid.

Half-Life

The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.