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7/24小考

Authored by 曾 老師

Science

7th Grade

Used 1+ times

7/24小考
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20 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

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?

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

Media Image

圖中的鐵釘一半浸在水中,則甲、乙、丙哪一點

最先生鏽?

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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