[金屬化學] 美國國務卿希拉里把一塊鉀吃掉

你讀化學時會不會每條題目也做一次實驗?

我不懂做功課才來問

(A) 為什麼鉀要儲存在油裡? (1分)

K will be oxidized in the air as it reacts with O2 to form K2O. This process would also produce H2, which is a flammable gas.
美國國務御希拉里把鉀放進口裡嘴嚼

(B) 鉀在美國國務卿希拉里的口裡會發生什麼化學反應? 寫出可見變化和化學等式。(3分)

K reacts with H2O in the mouth.
2K+2H2O --> 2KOH+H2

美國國務卿希拉里把鉀吞掉

(C) 鉀在美國國務卿希拉里的胃裡會發生什麼化學反應? 寫出可見變化和化學等式。(3分)

It's an explosive reaction.
2K + 2HCl --> 2KCl + H2

2012-01-28 22:20:13 補充BONUS:

如果美國國務卿希拉里吃的不是鉀, 而是Cs
那反應速度有什麼分別?Cs is more reactive than KThis reaction is more stronger than K and release a larger amount of heat.

2012-01-29 21:01:56 補充：
(A) 為什麼鉀要儲存在油裡? (1分)

K will be oxidized in the air as it reacts with O2 to form K2O. This process would also produce H2, which is a flammable gas.
So,
To be prevent, it should be stored in paraffin oil.

2012-01-29 21:02:32 補充：
To be prevent --> To prevent

閣下可先行試驗一次以上相關實險，問題自然迎刃而解。