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COMPOSITION FORMULA [1 record]
Record 1 - internal organization data 2011-07-05
Record 1, English
Record 1, Subject field(s)
- Chemistry
Record 1, Main entry term, English
- empirical formula
1, record 1, English, empirical%20formula
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- simplest formula 2, record 1, English, simplest%20formula
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
[A chemical formula which] expresses in simplest form the relative number and the kind of atoms in a molecule of one or more compounds; it indicates composition only, not structure. Example: CH is the empirical formula for both acetylene and benzene. 3, record 1, English, - empirical%20formula
Record number: 1, Textual support number: 1 OBS
See also "molecular formula". 4, record 1, English, - empirical%20formula
Record 1, Key term(s)
- composition formula
Record 1, French
Record 1, Domaine(s)
- Chimie
Record 1, Main entry term, French
- formule empirique
1, record 1, French, formule%20empirique
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- formule brute 2, record 1, French, formule%20brute
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Formule chimique indiquant la variété et les proportions des atomes dans la molécule, sans préciser, de quelle manière ils sont reliés. 3, record 1, French, - formule%20empirique
Record number: 1, Textual support number: 1 OBS
La formule brute indique seulement la nature et le nombre des atomes sans présumer de leur mode d'association. 3, record 1, French, - formule%20empirique
Record number: 1, Textual support number: 1 CONT
On distingue deux sortes de formules chimiques, les formules brutes et les formules développées. Les formules brutes rendent comptent de la composition des espèces chimiques, c'est-à-dire du nombre d'atomes de chaque élément intervenant dans la constitution des molécules. [...] Deux composés peuvent cependant avoir la même formule brute et être différents [...] et il faut, pour les distinguer, utiliser [...] la formule développée qui indique quels atomes sont liés à quels atomes dans une espèces chimique. 4, record 1, French, - formule%20empirique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Química
Record 1, Main entry term, Spanish
- fórmula empírica
1, record 1, Spanish, f%C3%B3rmula%20emp%C3%ADrica
feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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