Chemistry, 16.12.2021 16:10, dondre54

Hãy tính hóa trị của nguyên tố Mn, Fe, K trong các hợp chất sau: MnO 2 ,
Fe 2 O 3 , K 2 O.

Answers: 3

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Hãy tính hóa trị của nguyên tố Mn, Fe, K trong các hợp chất sau: MnO 2 ,
Fe 2 O 3 , K 2 O....