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thuyha1980
2 năm trước
Sục V lít CO2 dung dịch (đktc) vào 200ml dung dịch Ca(OH)2 xM thu được 0,1g kết tủa và dung dịch X. Đun sôi dung dịch X thu thêm 0,08g kết tủa. Tính V và x
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