國中自然2下3-1_
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Fun
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7th - 9th Grade
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Practice Problem
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Medium
Tang Da
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
判斷物質為電解質或非電解質最簡易的方法為何?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者並非電解質?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列物質中,有幾項可以導電?蒸餾水、食鹽水、鹽酸、氯化鈣水溶液、糖水、塑膠尺。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有一實驗裝置如附圖,當燒杯內盛裝何者溶液時,燈泡不會發亮?
氫氧化鈉水溶液
食醋
食鹽水
糖水
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
實驗室中有蔗糖及食鹽的水溶液,試問下列哪個實驗可以區別此兩種溶液?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有關電解質的敘述,下列何者錯誤?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
食鹽晶體不導電,但溶於水後則可導電,主要是因為溶液中的哪一種物質移動而導電?
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