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习题练习：Models of Bonding & Structure B.1 The Ionic Model
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 作者: admin    总分: 16分  得分: _____________

答题人: 匿名未登录  开始时间: 23年07月06日 14:30  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which properties are typical of ionic compounds?

Volatility solubility in polar solvents

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In which instance is ionic bonding most likely to occur?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  
The reaction of solid magnesium with gaseous oxygen is shown.
Mg(s) + $\frac{1}{2}$$O_2$(g)→MgO(s)
Which of the following correctly describes the process of MgO(s) formation?


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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which statements are correct about lattice enthalpies?
I.Salts with smaller lattice enthalpies have higher melting points
II.The lattice enthalpy depends on the charge of the constituent ions
III.The lattice enthalpy depends on the size of the constituent ions

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sodium fluoride contains ionic bonding. Which statement correctly describes ionic bonding?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  
Which compounds have an ionic lattice in the solid state?
I.Ammonium sulfate
II.Hydrogen chloride
III.Sodium carbonate


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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following polyatomic ions formulas is incorrect?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is incorrect?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following has covalent bonding?

I.$CCl_4$
II.$C{a_3}{N_2}$
III.$N{H_3}$

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  
Which of the following cannotcannot conduct electricity in a molten state?
I.$PC{l_3}$
II.NaCl
III.$S{O_2}$


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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following statements correctly describes what happens when magnesium fluoride is formed?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the formula of the compound formed between lithium and nitrogen?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is the correct formula for strontium sulfide?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  
Metal M is in group 2 of the periodic table. Which is the correct formula?


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15#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1.Explain the difference in physical properties of the following using knowledge of chemical structure and bonding:1.The boiling point of hydrochloric acid(HCl) is    than that of lithium chloride (LiCl).

2.Calcium bromide($CaBr_2$)    conduct electricity in a molten state and aqueous solution, and bromine ($Br_2$)
  .
3.The boiling point of $HI$ is    than $I_2X$
2.Arrange bromine($Br_2$), potassium and potassium bromide in order of increasing boiling points.   ＜  ＜  

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16#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calcium phosphide is used in explosives and fireworks.

1.Describe the bonding that exists between calcium and phosphorous in calcium phosphide.
2.State the chemical formula for calcium phosphide.
3.Calcium can also bond with thiocyanate to form calcium thiocyanate,($Ca(SCN)_2$)​. Deduce the ion charge on thiocyanate.  
4.Calcium compounds usually exist as a crystal lattice in the solid state. Describe what the lattice enthalpy can reveal about the bonds in the compound, referring to the magnitude of the lattice enthalpy in the answer.
5.Calcium fluoride ($CaF_2$) and calcium oxide
(CaO) are two examples of ionic compounds of calcium. Choose the lattice enthalpy of CaO is    than the lattice enthalpy of $CaF_2$
6.Predict, whether calcium oxide (CaO) or calcium fluoride ($CaF_2$)
will have a    melting point.

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