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酸的化学性质

Authored by Zhao Dan

Chemistry

9th Grade

Used 6+ times

酸的化学性质
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5 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

已知白醋里含3%~5%的醋酸 (CH3COOH),醋酸与稀HCl的化学性质相似,

下列物质不能与醋酸发生反应的是

石蕊溶液

Fe2O3

Zn

CO2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列化学方程式符合事实的是

铁粉与稀盐酸混合有大量气泡产生:2Fe+6HCl=2FeCl3+3H2↑

稀盐酸洒到大理石表面上有气泡产生:CaCO3+2HCl=CaCl2+H2O+CO2↑

用盐酸除锈:Fe2O3+HCl=FeCl2+H2O

黑色的氧化铜粉末与稀硫酸混合后,溶液变成蓝色:CuO+H2SO4=CuSO4+H2↑

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如图所示,在试管和小气球中分别盛有一种液体和一种

固体物质,将气球中的固体物质小心地倒入试管中,可观察到气球逐渐胀大,下列各组中不能达到上述要求的是

大理石和稀HCl

铝片和稀H2SO4

氧化钙和水

CuO和稀H2SO4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

将Fe、CO、CuO、H2SO4等4种物质两两混合,一定条件下能发生反应的组合有

1个

2个

3个

4个

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

下列实验方案设计、实验现象和结论均合理的是

A

B

C

D

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