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hoangmadridista2k
2 năm trước
Có 2 nhóm chất sau: A. CaO, CO2, CuO, CO, SO2, Fe2O3 B. NaOH, H2O, HCl Hãy cho biết những chất nào trong nhóm A tác dụng với chất nào trong nhóm B ( viết phương trình phản ứng xảy ra)
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