
110-2國二自然一段康軒習作練習
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
唐碩振 唐碩振
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31 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將21.7公克的氧化汞加熱分解成20.1公克的汞與X公克的氧氣,若X公克氧氣恰與Y公克的氫氣化合生成1.8公克水,試問X與Y各為多少?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知碳的原子量為12,則下列敘述何者正確?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知二氧化碳的化學式是CO2,一氧化碳的化學式是CO,試計算1個二氧化碳分子與1個一氧化碳分子的質量比?(原子量:C=12,O=16)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一個是正確的「氫氣與氧氣完全反應產生水」粒子模型圖?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲烷(CH4)與氧氣反應可生成二氧化碳及水蒸氣,化學反應式:CH4+2O2→CO2+2H2O,可知甲烷與氧氣反應的莫耳數比為下列何者?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列可燃物燃燒後的產物,何者置於水中後會使紅色石蕊試紙變藍色?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
歷史上,人類使用鐵器較銅器廣泛,但在博物館所保存的古物中,往往銅器多於鐵器,這可能與銅和鐵的什麼性質有關?
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