Перш класифікації Хімічних елементів про Менделєєва.

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ответ:Sorry, I'll write in my language because I don't understand yours, so chemistry is a pretty easy subject, I'm not on

Объяснение:jdkdbdbdhdSorry, I'll write in my language because I don't understand yours, so chemistry is a pretty easy subject, I'm not a pony.gdhksksjs