Chemistry, 16.06.2021 08:30 neverfnmind

Hợp chất A là oxit của kim loại có hoá trị không đổi. Trong A, kim loại chiếm 74,2% về khối lượng. Tìm công thức hoá học của A , gọi tên A và viết công thức bazơ tương ứng của A

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Hợp chất A là oxit của kim loại có hoá trị không đổi. Trong A, kim loại chiếm 74,2% về khối lượng. T...

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