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General chemistry
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General chemistry
membrane semi permeable
Chimie; Chimie générale
A membrane that allows some but not all of the components in a mixture to pass through it. Semipermeable membranes are used in dialysis .
theorie atomique
Chimie; Chimie générale
An explanation of chemical properties and processes that assumes that tiny particles called atoms are the ultimate building blocks of matter.
pile a combustible
Chimie; Chimie générale
A device that converts the chemical energy obtained from a redox reaction directly into electrical energy.
rendement en pourcentage
Chimie; Chimie générale
Percent yield equals experimental yield divided by theoretical yield times 100%.
cellule photovoltaique
Chimie; Chimie générale
An electrochemical cell that spontaneously generates electrical energy. In a voltaic cell, the value of Gibbs free energy is below 0.
nombre de coordination
Chimie; Chimie générale
The number of bonds formed by the central atom in a metal-ligand complex.
cetone
Chimie; Chimie générale
An organic compound that contains a carbonyl group. For example, methyl ethyl ketone is CH3COCH2CH3_ is used in some adhesives.
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