08-16-2008, 10:20 AM
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Gold Contributor 500+ Posts
Join Date: Apr 2008
Posts: 756
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Quote:
Originally Posted by yuqingeng
Ferric Chloride1,Two birls Teacher: Here are two birds, one is a swallow, the other is sparrow. Now who can tell us which is which? Student: I cannot point out but I know the answer. Teacher: Please tell us. Student: The swallow is beside the sparrow and the sparrow is beside the swallow. Sodium Hexametaphosphate
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whats this ? ? ? ?
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