化學神人快來救我..

問題來來去去只是在問同一個問題: 甚麼鉛鹽是不溶於水的?
氯化鉛, 硫酸鉛, 碳酸鉛是不溶於水的, 會生成白色沉澱物.
任何可溶的含氯離子/硫酸根離子/碳酸根離子的化合物, 遇到鉛離子時就有反應.

另外, 你的化學式有些寫錯了.

AgNO3 + (CH3COO)2Pb ------> (應該) 沒反應.

(CH3COO)2Pb + NaCl ------> PbCl2 + 2CH3COONa

(CH3COO)2Pb + Na2CO3 ------> PbCO3 + 2CH3COONa

(CH3COO)2Pb + Na2SO4 ------> PbSO4 + 2 CH3COONa

(CH3COO)2Pb + BaCl2 ------> PbCl2 + 2CH3COONa

(CH3COO)2Pb + 2HCl ------> PbCl2 + 2CH3COOH

(CH3COO)2Pb + CuSO4 ------> PbSO4 + (CH3COO)2Cu

NaCl + Na2CO3 ------> 沒反應.

NH4Cl + (CH3COO)2Pb ------> PbCl2 + 2CH3COONH4


2010-10-21 22:23:42 補充：
CH3COO 和 Pb 哪一個先行, 沒有太大關係
可能是由於酸是CH3COOH, 想要強調最後的那顆-H 可電離,
才特意保持這排列並把陽離子寫在後.

倒是, 要注意大寫小寫, 因為C, H 和O 都是元素.

AgNO3 + (CH3COO)2Pb

Silver acetate is only sparingly soluble in water.

If the concentration of lead(II) acetate used is not too dilute, a white to slightly grayish precipitate of silver acetate is formed.
2AgNO3(aq) + (CH3COO)2Pb(aq) → 2CH3COOAg(s) + Pb(NO3)2(aq)

2010-10-21 21:20:56 補充：
However, if the lead(II) acetate solution is very dilute, there would be no reaction.

For information:
At 20°C, the solubility of silver acetate is 1.02 g / 100 mL of water, while that of lead(II) acetate is 44.39 g / 100 mL.