chem redox

2007-09-29 6:18 am

Cu+2H2SO4---->CuSO4 + SO2 +H2O

The ox. no of S decrease from +6 to +4.WHY???

呢個H2SO4 GE ox. no of S 係 +6
,但係WHY CuSO4 GE ox. no of S 唔係 +6,係+4??

回答 (2)

2007-09-29 6:33 am

✔ 最佳答案

The ON of S in CuSO4 is +6
and i think what you said about "the ON of S is+4" is talking about the ON of S in SO2
Please check it......

參考: Myself

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2007-09-29 6:30 am

因為佢occur reduction lor
reduction係會loss charge (ox.no)
個ox.no係會跟住個reaction(redox)變嫁

參考: me

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