@audrey2102

audrey2102

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Niveau lycée Nommer la molécule Ch3-Ch2-C(Ch2)-Ch2-Ch3 Voici mon problème je ne comprend pas ce que signifie le c(ch2) qui est la chaine principale et si il y a des groupement alkyle si il sont avant ou après ?
Responda
Bonjour je dois rédiger une petite conclusion sur mes progrès en anglais ce semestre . Pouvez me signaler mes fautes merci d'avance . I think that I made progress in English this semester. In fact thanks to English classes I could be speak English and exercise me at the understanding with exercises proposed and when I listen my classmates and my teacher. Furthermore at my home I was able to work on the difficult points for me and familiarize me with scientific English and to finis I learn a lot of new words.
Responda

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