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Cwalkerkan
2 năm trước
Cho 53,2 gam kim loại kiềm M vào 50,0 gam dung dịch HCI 36,5%. Cô cạn dung dịch sau phản ứng thì thu được chất rắn X có khối lượng là 67,4 gam. Vậy kim loại kiềm M là : A.Cs B. Na C. K D. Rb Làm hộ mik câu 9...cảm ơn.
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