有餘燼的木條重燃, 這是甚麼氣體成份?
2425 f2 ut1
6th - 8th Grade
•21 Qs
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2425 f2 ut1
Quiz
•
Science
•
6th - 8th Grade
•
Medium
Solve lck
Used 6+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
氧
二氧化碳
水汽
氮
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
把數滴石灰水加入試管, 變為乳濁, , 這是甚麼氣體成份?
氧
二氧化碳
水汽
氮
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
碳酸氫鹽指示劑, 變為黃色, , 這是甚麼氣體成份?
氧
二氧化碳
水汽
氮
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
乾燥器內的氯化鈷試紙, 試紙由藍
色變為粉紅色。, 這是甚麼氣體成份?
氧
二氧化碳
水汽
氮
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
如以上測試都沒有反應, 則是
氧
二氧化碳
水汽
氮
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
二氧化碳用途 (那個是錯)
固態二氧化碳（即乾冰
用於舞台上製造煙霧效果
不助燃，可用於滅火
助燃
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
進行探究前先把植物
脫澱粉，方法是把植物放在黑暗環境中最少
幾多小時。
48
20
24
12
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