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hunglong0711
2 năm trước
Bài 1: Cho các chất có công thức: Na2O, Fe2O3, CuO, P2O5. SO3, CaO, N2O, SO2, CO, BaO, SiO2, ZnO, Al2O3. a. Phân loại và gọi tên các oxit trên? b. Viết công thức bazơ tương ứng với oxit bazo? Viết công thức axit tương ứng với oxit axit? c. Chất nào tác dụng với nước? với dd HCl? Với dung dịch Ca(OH)2? Viết PTHH? Bài 2: Có các khí sau bị lẫn hơi nước: N2, O2, CO2, SO2. Khí nào có thể làm khô bằng : a. H2SO4 đặc. b. CaO. Có hai nhóm chất: Nhóm A. CaO, CO2, CuO, CO, SO2, Fe2O3. Nhóm B. HCl, NaOH, H2O. Cho biết những chất nào trong nhóm A tác dụng với những chất nào trong nhóm B? Viết PTHH? Mn giúp e vs ạ!!!
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