
109-2國二自然一段翰林習作練習
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Medium
唐碩振 唐碩振
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51 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
鉛蓄電池當中的重要材料金屬鉛,可由鉛礦中的 PbO 與煤焦反應而得,其反應式為:PbO+C → Pb+CO,則此反應中發生還原反應的物質為何?
PbO
C
Pb
CO
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知 Na、Mg、C、Cu 對氧的活性順序是:Na>Mg>C>Cu,下列四組物質,何者會發生氧化還原反應?
C+Na2O
Mg+Na2O
C+MgO
C+CuO
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一個現象,不是因為化學變化?
生米煮成熟飯
生雞蛋煮成了水煮蛋
自來水煮沸成開水
國慶日的絢爛煙火
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
氫氧化鈉的化學式是 NaOH,現有氫氧化鈉 80 公克,試問為多少莫耳?(原子量:H=1,O=16,Na=23)
0.5
1
2
3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
附圖為小林在習作本中對某一問題的回答:關於小林的舉例說明,下列何者正確?
舉例不完整,因為Ⅰ、Ⅱ皆為吸熱反應
舉例不完整,因為Ⅰ、Ⅱ皆為放熱反應
舉例完整,Ⅰ為吸熱反應,Ⅱ為放熱反應
舉例完整,Ⅰ為放熱反應,Ⅱ為吸熱反應
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把點燃的鎂帶放進二氧化碳的集氣瓶中,發現鎂帶繼續燃燒,但反應後瓶上有黑色斑點附著,試問下列敘述何者錯誤?
此反應的反應式為 2Mg+CO2 → 2MgO+C
瓶壁上的黑色斑點為碳粒
在這反應中,二氧化碳被氧化
由此可知,當鎂粉燃燒時,不宜用二氧化碳滅火器來滅火
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知甲和乙兩種物質反應會生成丙和丁,其反應式為:3甲+乙→2丙+2丁。附表是甲和乙反應的一組實驗數據,理論上可以生成多少公克的物質丁?
18公克
44公克
70公克
88公克
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