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tlam19082000
2 năm trước
Biết rằng kim loại magie Mg tác dụng với axit sunfuric H2SO4 tạo ra khí hiđro H2 và chất magie sunfat MgSO4. a) Lập phương trình hóa học của phản ứng. b) Cho biết tỉ lệ số nguyên tử magie lần lượt với số phân tử của ba chất khác trong phản ứng. Chỉ làm phần b thôi nha, tiện thể cho em hỏi làm như nào để biết tỉ lệ số phân tử giữa các chất ạ ? CHI TIẾT NHA EM MỚI HỌC HÓA THÔI!
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