General chemistry

General chemistry

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General chemistry

critical pressure

Chemistry; General chemistry

The pressure at the critical point .

law of definite proportions

Chemistry; General chemistry

When two pure substances react to form a compound, they do so in a definite proportion by mass. For example, when water is formed from the reaction between hydrogen and oxygen, the 'definite ...

solubility

Chemistry; General chemistry

The solubility of a substance is its concentration in a saturated solution . Substances with solubilities much less than 1 g/100 mL of solvent are usually considered insoluble. The solubility is ...

amphiprotic solvent

Chemistry; General chemistry

Solvents that exhibit both acidic and basic properties; amphiprotic solvents undergo autoprotolysis . Examples are water, ammonia, and ethanol.

eutectic point

Chemistry; General chemistry

The composition and the melting point of a eutectic mixture . For example, the eutectic point of a mixture of NaCl and water occurs at 23.3% NaCl (by mass) and -21.1°C. That means that the lowest ...

nuclide symbol

Chemistry; General chemistry

A symbol for an nuclide that contains the mass number as a leading superscript and the atomic number as a leading subscript. For ions, the ionic charge is given as a trailing superscript. For ...