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buithiphuonganh2572001
2 năm trước
Bài 1: Có những oxit sau: Fe2O3, CaO, Al2O3, CuO, SO2, SO3, CO. Những oxit nào tác dụng với: a) H2O b) Dung dịch H2SO4 Viết các PTHH của các phản ứng xảy ra? Bài 2: Cho các chất CaO, CuO, Na2O, SO3, H2O, CO, CO2, H2SO4, NaOH, MgCl2, FeSO4. Hãy cho biết những chất nào tác dụng được với nhau từng đôi một. Viết các PTHH của các phản ứng xảy ra? Bài 3: Bằng phương pháp hoá học hãy nhận biết các chất riêng biệt sau: a) BaO, MgO, CuO b) HCl, NaOH, Na2SO4, NaCl c) CO, CO2, SO2
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