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Mathematics, 07.12.2020 08:30 twrxght6643
Химический элемент является простым веществом.
Химический элемент характеризуется свойствами вещества.
Химический элемент характеризуется составом вещества.
Химический элемент – это определённый вид атома.
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Химический элемент является простым веществом.
Химический элемент характеризуется свойствами вещест...
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