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授课教师:张海龙. 我们已经学习了二氧化碳的有关知识,请大家回忆一下它的制法、性质及用途。. 一、二氧化碳的制法. 请你尝试. 用右图装置制取二氧化碳. 制备原理: CaCO 3 + 2HCl=CaCl 2 + H 2 O + CO 2 ↑ 碳酸钙 盐酸 氯化钙 水 二氧化碳. 二、二氧化碳的性质. 请你尝试. 用制得的二氧化碳按右图装置进行实验. 分析归纳. 分析上述实验现象可归纳出:

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授课教师:张海龙

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5210786


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CaCO3 + 2HCl=CaCl2 + H2O + CO2


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________()_______________(),_________()


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?

CO21L1L CO2CO2


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,


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H2CO3


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1

----

CO2 + Ca(OH)2 = CaCO3+H2O

2

CO2 + H2O = H2CO3

3CO2

H2CO3

=

H2O+CO2


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  • CO2

CO2

CO2


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1

2


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,


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1

A.B.C.D.

2

A.B.C.D.

3

A.B.C.D.

4H2CO3H2OCO2

A.B.C.D.

C

A

BD

B


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,

!!!


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