

Trong phản ứng 2KMnO4 + 16HCl -> 2KCl + 2MnCl2 + 5Cl2 + 8H2O, nguyên tố nào bị khử?
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phản ứng ôxi hóa khử là phản ứng có sự nhường và nhận
- Phản ứng oxi hóa khử tỏa nhiệt mạnh. 82
- Bằng số thứ tự của nhóm. 76
- Trong phân tử CO2, số oxi hóa của C là bao nhiêu?
- Trong ion NO3^-, số oxi hóa của N là bao nhiêu?
- 2CrO4^2- + 3S^2- + 8H2O -> 2Cr(OH)3 + 3S + 10OH^-. 141
- Khi có sự thay đổi số oxi hóa của ít nhất một nguyên tố. 127
- Sau khi viết các quá trình, bước tiếp theo là gì?
- Số oxi hóa bằng 0. 10
- Clo. 202
- +7. 15
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