

c) I^-. 233
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phản ứng ôxi hóa khử là phản ứng có sự nhường và nhận
- Trong phản ứng Fe + CuSO4 -> FeSO4 + Cu, chất nào là chất khử?
- Không. 104
- +7. 19
- Cacbon dioxit (CO2). 169
- Trong các hidrua kim loại (ví dụ NaH), số oxi hóa của hidro là bao nhiêu?
- +3. 72
- Quá trình khử. 190
- Chất oxi hóa có vai trò gì trong phản ứng oxi hóa khử?
- Vào phương trình phản ứng. 198
- Phản ứng oxi hóa khử có vai trò quan trọng trong quá trình nào sau đây a) hòa tan đường vào nước, b) nấu cơm, c) sự hô hấp của sinh vật, d) hòa tan muối vào nước?
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