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tiena3k49
2 năm trước
Cho luồng khí CO2 ở Đktc đi qua 300 ml dd Ba(OH)2 1M thấy thu được m(g) kết tủa. Viết PTHH xảy ra? B/ Tính khối lượng kết tủa m ? Tính thể tích khí cacbonic ở đktc?
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