If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content
Introduction to Oxidation States http://www.khanacademy.org/video/introduction-to-oxidation-states ----------------------------------- يتناول هذا الفيديوحل أمثلة حول حالات الأكسدة ----------------------------------- شكر خاص لمؤسسة شركاء في التنمية المستدامة -- فلسطين http://psdpal.org