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General chemistry
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General chemistry
Variable
Chemistry; General chemistry
A quantity that can have many possible values. In designing experiments, variables that affect measurements must be identified and controlled. For example, an experiment that measures reaction rates ...
Concentrate
Chemistry; General chemistry
To increase the amount of substance present in a unit amount of mixture. For example, allowing solvent to evaporate from a solution concentrates the solution.
Saturated solution
Chemistry; General chemistry
A solution which does not dissolve any more solute. When a saturated solution is placed in contact with additional solute, solute neither dissolves nor is deposited from a saturated solution.
Formation
Chemistry; General chemistry
A reaction that forms one mole of a compound from its elements in their most stable forms. For example, the formation reaction for water is H2(g) + ½O2 H2O( ).
Parts per million
Chemistry; General chemistry
Parts per million is a commonly used unit of concentration for small values.
Vertical ionisation energy
Chemistry; General chemistry
The energy required to remove an electron from an atom, molecule, or ion in the gas phase without moving any nuclei. The vertical ionisation energy is greater than or equal to the adiabatic ...