把碳酸鈣和氯化鈉的混合物加入水中搖匀，然後把混合物按以下的流程圖展示步驟分離。
混合物（碳酸鈣，氯化鈉和水）
｜步驟１
｜－－－－－－－－－－－－－－－－｜
固體ａ 清澈的溶液
｜步驟２
｜－－－－－－－－－－｜
純水 含有一些固體的溶液
我想問既係步驟１同步驟２係咩？
固體ａ又係咩？
我想知呢ｄ點樣分離？分離成咩？（最好化學老師入）中３化學
2007-03-28 2:12 am
回答 (2)
2007-03-28 2:24 am
✔ 最佳答案
step 1 is 過濾step 2 is 蒸餾
a 係碳酸鈣( 因為CaCO3 唔係太溶於水）
2007-03-27 18:26:11 補充：
if step 2 is 蒸發, 水便會蒸走左....分離唔到囉
2007-03-27 19:05:16 補充：
氯化鈉係溶液 碳酸鈣係固體
參考: my poor chemical knowledge
2007-03-28 4:02 am
氯化鈉 NaCl is a type of salt
-normal comdition (solid)
-when dissolved in water (solution)
碳酸鈣CaCO3 is solid in normal condition
and it is just slightly solube in water
so we seldom say it is a solution
固體ａ碳酸鈣CaCO3
步驟１過濾, Filtration
步驟２蒸餾 not 蒸發 because we can extract pure water from the solution, distillation
-normal comdition (solid)
-when dissolved in water (solution)
碳酸鈣CaCO3 is solid in normal condition
and it is just slightly solube in water
so we seldom say it is a solution
固體ａ碳酸鈣CaCO3
步驟１過濾, Filtration
步驟２蒸餾 not 蒸發 because we can extract pure water from the solution, distillation
參考: myself
收錄日期: 2021-04-12 22:24:53
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