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tranthingocquyen593
2 năm trước
Hỗn hợp gồm X gồm 2 kim loại kiềm và một kim loại kiềm thổ tan hoàn toàn vào nước , tạo ra dung dịch A và 0,06 mol H2 . Thể tích dung dịch H2SO4 2M cần thiết để trung hoà dung dịch A là?
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