Representación de la composición química de una sustancia mediante símbolos convencionales (letras que representan los elementos y números que indican la proporción de estos elementos). En fórmulas más desarrolladas, se pueden utilizar guiones para indicar el número de enlaces.   1 validation

  Julio Torres 

Ensemble de symboles des éléments et de nombres entiers dénotant la composition d'une espèce chimique.   1 validation

  Miranda Joubioux (src: Petit Larousse 2004) 

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