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kh787098
2 năm trước
Hòa tan hoàn toàn kim loại magie trong 200ml dd axit sunforic loãng ( H2so4) sau phản ứng thu đc 1,12l khí ở đktc A. Vt pthh B. Tính nồng độ mol dd h2so4 đã tham khảo
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