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ngoctuan0124
2 năm trước
Dẫn từ từ 6,72 lít khí CO2( ở đktc) vào dung dịch nước vôi trong Ca(OH)2 dư. a, Viết phương trình hóa học của phản ứng xảy ra. b, Tính số gam kết tủa thu được sau phản ứng. ( cho: Ca = 40; O= 16; H=1)
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