chem metal-acid問題(ce level)20分

2009-06-07 4:43 am

我想問chem,

Cu可以同以下邊種acid react?

1.dilute HCl

2.conc. HCl

3.dilute H2SO4

4.conc. H2SO4

5.very dilute HNO3

6.dilute HNO3

7.conc. HNO3

Plz ans with explanation.Thx~~

回答 (1)

老爺子

2009-06-07 6:09 am

✔ 最佳答案

1.
No reaction occurs.

2.
No reaction occurs.

3.
No reaction occurs.

4.
Reaction occurs.
Cu + 2H2SO4 → CuSO4 + 2H2O + SO2

5.
No reaction occurs.

6.
Reaction occurs.
3Cu + 8HNO3 → 3Cu(NO3)2 + 4H2O + 2NO

7.
Reaction occurs.
Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2
=

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