作者yehbell (Bell)
看板NTUF-97
标题[讨论] 普化习题(老师没说要写的)
时间Sat Oct 4 09:49:59 2008
大家呀
我来发文了
嗯 相信大家都没写吧
我先放几题(课本後面没有写答案 老师也没说要写的)
由於是我自己写的 如果有错误 欢迎给予指正
感恩~
Ch1.
1.59
First, put a magnet into the mixture so as to attract the iron filings out.
When all the iron filings are out of the mixture, we then add some water.
Next, prepare a funnel with filter paper, and make sure they can stick to
each other. Third, drop the mixture, sand with salts added to water into the funnel.
After that, sand will leave on the filter paper; therefore, we can get salty water.
Fifth, put the salty water on the stove to boil the water. Once the water evaporates,
we can finally gain salt.
好吧 由於时间关系 我先放这一题
希望大家别拿他取笑我
感谢!
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1F：推 rimoe :请问教授有说要交吗? 详解好像在哪可以买得到~ 10/05 13:35
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