Степень окисления | Мини-Химик Ира | Онлайн-школа EASY PEASY | ОГЭ химия
⚡EASY PEASY - СУПЕРМЕН в мире ОГЭ.
С нами ты сдашь ВСЕ на ПЯТЁРОЧКУ🏅
🔹 МИНИ-ХИМИК ИРА -
🔹ОГЭ ХИМИЯ -
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