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conformations of ethane and propane https://www.khanacademy.org/science/organic-chemistry/bond-line-structures-alkanes-cycloalkanes/conformations-alkanes-cycloalkanes/v/conformations-of-ethane-and-propane --------------------------------------------------- يتناول هذا الفيديو بعض الأمثلة حول تشكيل الايثان والبروبان --------------------------------------------------- شكر خاص لمؤسسة شركاء في التنمية المستدامة -- فلسطين http://psdpal.org