
水溶液
Authored by 吉林周姵伶 吉林周姵伶
Chemistry
5th Grade
Used 2+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
物質溶入水中後就不會散發氣味,因此不同的水溶液氣味都會相同。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
為了減少實驗的誤差,科學家在實驗室常用純水來配製水溶液。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
用鼻子辨別水溶液的氣味時,可以用鼻子直接靠近水溶液聞氣味。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
可以讓紅色石蕊試紙變藍色的水溶液是鹼性水溶液。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
分別用紅色石蕊試紙與紫色高麗菜汁檢測酸性溶液,兩者都會呈現偏藍色。
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
無論在鹼性水溶液中加入任何溶液,水溶液的酸鹼性質都不會改變。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
小狄想檢測洗髮精的酸鹼性,可以先稀釋溶液,這樣比較容易觀察到顏色變化。
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