(6分)(1)Pb ;Pb-2e
- + SO
4
2- =" " PbSO
4 (2)1.5mol (3)增大
|
C
|
C
|
A
|
B
|
乙;(2)Fe – 2e
- = 2Fe
2+ (3) 2Cl- 2e
- = Cl
2↑用湿润的淀粉KI试纸检验,若变蓝色则为氯气
(4) ↑ |
BC
|
D
|
B
|
D
|