Chemistry, 21.07.2021 20:40 pindu

Câu 2. Trong phòng thí nghiệm có: H2SO4 đặc, Cu, nuwóc cất, dụng cụ và điều kiện thí nghiệm có đủ. Trình bày thí nghiệm : Cu tác dụng với H2SO4 đặc và H2SO4 loãng. Nêu hiện tuwọng xảy ra, viết phuwong trình phản ứng.

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Câu 2. Trong phòng thí nghiệm có: H2SO4 đặc, Cu, nuwóc cất, dụng cụ và điều kiện thí nghiệm có đủ....

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