草酸钙是沉淀

送交者: yongshi 于 2009-04-02, 08:05:59:

回答: 弱酸不能置换强酸虽然从热力学上讲确实如此，但是草酸钙是沉淀，由 asasasa 于 2009-04-01, 20:34:11:

时间久, 草酸把硫酸钙变成草酸钙不可能

a parable,
when you are getting older and older, more and more,
you look like your father, no matter how he looked like you
when he was young, it is IMPOSSIBLE for him to look like you as time being.

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