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酸鹼存在的危險

Authored by Chan Hiu Ying陳曉瑩老師

Science

6th - 7th Grade

Used 3+ times

酸鹼存在的危險
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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

在稀釋的過程中,應把水加入到大量的硫酸中,以減少上升的溫度。

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

用漂白水清潔產生臭味(氯氣)的原因是甚麼?

因受到太陽的照射,臭味佈滿空氣中

因加入了熱水稀釋

臭味來自厠所內的污垢

因為加入了含有鹽酸的清潔劑 

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

皮膚碰到強酸強鹼該如何處理?

加入另一種強酸或強鹼中和 

加入通用指示劑,以了解當時皮膚的酸鹼度 

不要加入任何溶液,以免皮膚進一步灼傷 

 加入大量的水進行稀釋 

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

如被蜜蜂蜇傷,我們可以用以下哪些方法處理?

向傷口撒尿

向傷口塗上少量通渠劑 

使用食用梳打粉塗抺傷口

在傷口上塗上食用醋 

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

廚房清潔劑通常含有酸,以去除油污。

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