國中自然3下1-4__
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Fun
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7th - 9th Grade
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Tang Da
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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有關電解水的實驗,下列敘述何者正確?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若欲在剪刀上電鍍一層明亮的銅,則下列敘述何者錯誤?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
利用鋅銅電池當電源,以硫酸銅為電鍍液,在鐵質鑰匙表面鍍上一層銅,裝置如附圖。已知甲、乙各盛裝相對應的電解質水溶液,開始電鍍一段時間後,下列敘述何者正確?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如欲在某物體上電鍍金屬,下列操作方法哪些是正確? 甲.被鍍物應接在直流電源的負極;乙.若是鍍銅,銅片作為正極,以硫酸銅為電解液;丙.電鍍後,被鍍物用硫酸沖洗並乾燥;丁.電鍍的廢液不具任何毒性,可任意排放
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
毛毛使用如附圖的裝置,在裝有蒸餾水的燒杯中滴入少量稀硫酸,並將導線甲、乙兩端分別與電池組的正、負兩極連接,以進行電解實驗,下列有關此實驗的敘述何者正確?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在民國七十五年間,當時的高雄縣 二仁溪發生綠牡蠣事件,此為下列哪一種電鍍工廠所造成?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在電解水的過程中,如何加快氣體產生的速率?
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