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Half-cells in which the oxidized and reduced forms of a species are present at unit activity, 1.0M solutions of dissolved ions, 1.0atm partial pressure of gases, and pure solids and liquids.

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Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Radiation

High energy particles or rays emitted during the nuclear decay processes.

Radioactivity

The spontaneous disintegration of atomic nuclei.

Henry's Law

The pressure of the gas above a solution is proportional to the concentration of the gas in the solution.

Phenol

Hydrocarbon derivative containing an [OH] group bound to an aromatic raing.

 

Creating Malachite egg

One of the most interesting and obvious chemical experiments is the experiment on the interaction of copper sulfate and calcium carbonate. The latter is contained in the shell of a simple egg, but copper sulphate should be searched in a chemical reagent store. This experience is simple, but effective and visual, and as a result we will get something beautiful.

Detergent

A soap-like emulsifer that contains a sulfate, SO3 or a phosphate group instead of a carboxylate group.

Exothermic

Describes processes that release heat energy.

Salicylate

A salt or ester of salicylic acid.

Valence Shell Electron Pair Repulsion Theory

Assumes that electron pairs are arranged around the central element of a molecule or polyatomic ion so that there is maximum separation (and minimum repulsion) among regions of high electron density.