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tn5180473
2 năm trước
Hỗn hợp X gồm kim loại kiềm và oxit của nó có khối lượng là 18 g tan hết trong nước thoát ra 1,12 lít khí H2 dktc và được một dung dịch kiềm .Để trung hòa dung dịch kiềm này cần dùng hết 100ml dung dịch H2SO4 2M .Tìm kim loại và oxit?
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