Science Question
2011-10-07 2:39 am
i want to ask u that which solution will change colour from pink to blue after blowing by the hair dryer??
回答 (1)
2011-10-08 5:54 am
✔ 最佳答案
I think you may be in form 2In f2 level, only hexahydrate cobalt(II) chloride paper(contain hexahydrate cobalt(II) chloride solution) will turn from pink to blue by dehydrating it
The use of hair dryer is dehydrating.
參考: myself
收錄日期: 2021-04-17 02:17:36
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