酸鹼中和2

酸鹼中和2

Assessment

Assessment

Created by

鄭之偉 鄭之偉

Science

7th - 9th Grade

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10 questions

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1.

Multiple Choice

30 sec

1 pt

「某校的水管因長年未清理,所以已經堵塞、難以使用,因此在排水孔倒入一罐含氫氧化鈉的疏通劑,但倒入後沒過多久,水管就爆炸了。」試問水管爆炸的原因最可能為何?

水管疏通劑遇到汙垢等酸性物質放出大量的熱

水管的油汙產生的氣體過多

水管中的油汙因劇烈摩擦而爆炸

有駭客在水管中放置炸彈,偽裝成爆炸事件

2.

Multiple Choice

30 sec

1 pt

在室溫下,將下列哪一組物質混合後,會立即產生化學反應?

葡萄糖、食鹽水

沙拉油、汽油

鹽酸、氨水

酒精、水

3.

Multiple Choice

30 sec

1 pt

將氫氧化鈉水溶液(NaOH)與稀硫酸水溶液(H2SO4)混合,其反應式如下:2NaOH+H2SO4→Na2SO4+2H2O 有關此反應的過程,下列何者正確?

為放熱的化學變化

為吸熱的化學變化

為放熱的物理變化

為吸熱的物理變化

4.

Multiple Choice

30 sec

1 pt

下列哪一項是酸鹼中和的離子反應式?

H++OH- --> H2O

H2O -->H++OH-

2H2O --> 2H2+O2

2H2+O2 --> 2H2O

5.

Multiple Choice

30 sec

1 pt

下列何者不是酸鹼中和反應一定會發生的現象?

產生水

產生氯化鈉

放熱

生成鹽類

6.

Multiple Choice

30 sec

1 pt

將氫氧化鈣(Ca(OH)2)與鹽酸(HCl)反應,實際上有參與反應的是何者?

Ca2+及H

Ca2+及OH

H及Cl

H及OH

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