18.=FeSO4+H2S↑(2)SO2 Na2SO3 查看更多

 

题目列表(包括答案和解析)

下列化学反应和事实,说明利用了硫酸的什么性质?填在各小题的横线上

1)浓硫酸可作气体干燥剂

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2CuSO4×5H2OCuSO4+5H2O

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32NaCl+H2SO4(浓)Na2SO4+2HCl

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4FeS+H2SO4(稀)══FeSO4+H2S

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5Zn+H2SO4(稀)══ZnSO4+H2

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6Na2SO3+H2SO4══NaSO4+SO2+H2O

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7Cu+2H2SO4(浓)CuSO4+SO2+H2O

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8S+2H2SO4(浓)3SO2+2H2O

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下列化学反应和事实,说明利用了硫酸的什么性质?填在各小题的横线上

1)浓硫酸可作气体干燥剂

_______________________________________________________________________________

2CuSO4×5H2OCuSO4+5H2O

_______________________________________________________________________________

32NaCl+H2SO4(浓)Na2SO4+2HCl

_______________________________________________________________________________

4FeS+H2SO4(稀)══FeSO4+H2S

_______________________________________________________________________

5Zn+H2SO4(稀)══ZnSO4+H2

_______________________________________________________________________________

6Na2SO3+H2SO4══NaSO4+SO2+H2O

_______________________________________________________________________________

7Cu+2H2SO4(浓)CuSO4+SO2+H2O

_______________________________________________________________________________

8S+2H2SO4(浓)3SO2+2H2O

_______________________________________________________________________________

 

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根据下列化学反应和事实,说明利用了硫酸的什么性质,填在各小题的横线上。

A.不挥发性   B.酸性       C.吸水性

D.脱水性     E.强氧化性   F.强酸性

①浓硫酸可作气体干燥剂________

CuSO4×5H2OCuSO4+5H2O________

2NaCl+H2SO4(浓)Na2SO4+2HCl________

FeS+H2SO4(稀)══FeSO4+H2S________

Zn+H2SO4(稀)══ZnSO4+H2________

Na2SO3+H2SO4══Na2SO4+SO2+________

Cu+2H2SO4(浓)CuSO4+SO2+2H2O________

S+2H2SO4(浓)3SO2+2H2O________

 

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根据下列化学反应和事实,说明利用了硫酸的什么性质,填在各小题的横线上。

A.不挥发性   B.酸性       C.吸水性

D.脱水性     E.强氧化性   F.强酸性

①浓硫酸可作气体干燥剂________

CuSO4×5H2OCuSO4+5H2O________

2NaCl+H2SO4(浓)Na2SO4+2HCl________

FeS+H2SO4(稀)══FeSO4+H2S________

Zn+H2SO4(稀)══ZnSO4+H2________

Na2SO3+H2SO4══Na2SO4+SO2+________

Cu+2H2SO4(浓)CuSO4+SO2+2H2O________

S+2H2SO4(浓)3SO2+2H2O________

 

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