That's why I need to find out what BOP is. The right one is formed from potassium iodide and BOP (2I- + Pb++ --> Pbl2), and the middle one is potassium dicromate ( Cr2O7- -+ Pb++ --> PbCrO7)



I hope I am right, if my memory is correct.

So colourful. I like it ~~~ Vote ^^

我都唔知妳講D咩,我以前一路都係讀文科,正如沙皮兄所講,早D識妳就好啦,妳可以早D教我,唔駛讀唔到理科.而且睇妳幾自由,上堂都可以影相,.真羨慕!

Pb2+ o個支係咩顏色呀?

用咩方法test佢, redox reaction?

如果早十幾年見到這些相, 我化學可能有少少機會合格. >_<

Are you in the Chemistry Lab ?

Nice shot. vote.