食品的包裝中,為了能延長保存期限,一般都在包裝中填充某一種氣體,試問該氣體為何?

7/24小考

Quiz
•
Science
•
7th Grade
•
Medium
曾 老師
Used 1+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
氮氣
二氧化碳
氦氣
臭氧
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
請你深深吸一口氣,緩和考試氣氛,此時吸入的空氣最多的氣體為何?
氮氣
二氧化碳
氧氣
氬氣
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
請你緩緩吐一口氣,此時吐出的空氣最多為何?
氮氣
二氧化碳
氧氣
氬氣
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
圖中的鐵釘一半浸在水中,則甲、乙、丙哪一點
最先生鏽?
甲
乙
丙
均相同
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
將空氣裝在某容器中,經精密測出,已知含氧氣為2公升,由此推測該容器中所含空氣之總體積約為多少公升?
5公升
10公升
15公升
20公升
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
二氧化碳可用來滅火的理由,和下列何者無關?
不助燃
不可燃
比空氣重
比空氣輕
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
乾冰放在室溫下,會有昇華的現象發生,請問昇華的現象為何種狀態的改變?
固態→液態
液態→氣態
固態→氣態
氣態→固態
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