What do we call the substances Left on filter paper ?
回答 (3)
2008-12-07 12:18 pm
✔ 最佳答案
It is usually called residue, you can also call it precipitate. But precipitate usually refers to undissolved substances in a chemical reaction; so residue is more appropriate.
2008-12-07 4:12 am
the substance called residue
2008-12-06 20:14:46 補充：
my IS very good??
2008-12-06 20:14:46 補充：
my IS very good??
參考: myself
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