chem chem chem

2007-11-26 8:16 pm
鋅加硫酸銅的法學方程式AND離子式_如有

HELP

AND一個可見的變化

回答 (2)

2007-11-26 10:55 pm
✔ 最佳答案
Zn(s) + CuSO4(aq) ---------> ZnSO4(aq) + Cu(s)

Zn(s) + Cu2+(aq) ---------> Zn2+(aq) + Cu(s)


Blue solution change to colorless solution
Red precipitate formed
參考: Me
2007-11-26 10:59 pm
Zn (s) + CuSO4 (aq) -> Cu(s) +ZnSO4(aq)

Ionic equation: Zn + Cu2+ -> Zn2+ + Cu

Observation: Zn becomes red-brown colour, OR colour intensity of solution decrease.
參考: Chemistry textbook.


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