
112-八下自然ch3習作
Passage
•
Science
•
9th Grade
•
Practice Problem
•
Easy
林 炳弘
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29 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將運動飲料與電路連接時,發現可以使燈泡發亮,這是因為下列哪一種粒子在水溶液中移動而導電?
電子
質子
離子
分子
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列有關酸性物質的敘述,何者錯誤?
醋酸與大理岩反應會產生二氧化碳
鎂帶與鹽酸反應會產生氧氣
酸性物質溶於水會解離出氫離子
鹽酸可用來清洗金屬表面
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列關於氯離子(Cl-)和氯原子(Cl)的比較,何者正確?
原子序相同
電子數相同
化學性質相同
氯原子失去一個電子後,形成氯離子
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
桌上有三種無色溶液甲、乙、丙,已知其中有酸性溶液、鹼性溶液及酚酞指示劑。小雯做了測試如下表,則可推測丙溶液應為下列何者?
酸性溶液
鹼性溶液
酚酞指示劑
無法推斷
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列選項中的水溶液,何者屬於酸性溶液?
NaOH
HCl
Ca(OH)2
NH3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何種物質可作為乾燥劑,且其水溶液可用來檢驗二氧化碳的存在?
氫氧化鈉
氧化鈣
氨
氯化鈣
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知某原子X的質子數為9、中子數為10,則此原子所形成的離子X-,應具有的電子數目為多少?
8
9
10
11
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