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二、选择题

1:Using a periodic table IIA,period 5—Sr,strontium IVA,period 3—Si,silicon VA,period4-As

2:Elements in the same family .have similar chemical properties

Elements in the same period.have same number of electron layers

3:不同主族，价电子层有几个电子

How many electrons are there in the valence shell of the sodium钠 atom? 1

How many electrons are there in the valence shell of the chlorine氯 atom? 7

4:more polar?O—O无极性；H—O大；F—O小；F—H更大

5:not polarCF3非极性；NF3有极性；SiH4非极性；H2O有极性；C2H6有极性

6:同一周期电负性比较

more electronegative than sulfur(S)?Te；Al；Si；P都不是

more electronegative than oxygen(O)? F

8:The molecular shape of the phosphine molecule,PH3 is ______. D

A、linear 直线型 CO2 B、angular 角型CO C、trigonal planar 三角锥型SO2D、trigonal pyramidal 三角双锥型 H2O

9:容量分析，重量分析是什么学科

analytical chemistry

10：热力学，动力学，统计力学，量子力学几个学科研究什么

Thermodynamics studies___. (A)

(A)heat,work,energy,and the changes they produce in the states of systems.

(B)the relationships between the molecules of a system

(C)heat,work,temperature,and the energy produced in the states of system

(D)heat,energy,and work

In___________,the molecular and macroscopic levels are related to each other. (C)

(A)quantum (B)thermodynamics

(C)statistical mechanics (D)kinetics

11、For a Isolated system,neither matter nor energy can be transferred between system and surroundings.

For a closed system,energy but not matter can be transferred between system and surroundings.

For an open system,both matter and energy can be transferred between system and surroundings.

12：Examples of degradable可降解 pollutants are DDT and radioactive materials.

Examples of nondegradable不可降解 pollutants are mercury,lead and some of their compounds and some plastics.

A primary air pollutant is a chemical added directly to the air that occur in a harmful concentration

13、What type of instrument allows you to determine the mass of a compound? a mass spectrometer

What type of instrument is effective at separating the components of a mixture based on their affinity for an adsorbent material and uses high pressure pumps? HPLC

14：比较沸点 醇（最高）醚 > 胺 烷烃（最低）Arrange the following in order of increasing boiling point.

C2H5OH CH3CH2CH3 CH3OCH3 CH3CH2NH2 II < III < IV < I

15：农药

According to text, what percentage of world's food production do pests destroy each year?30%~48%

According to text, which of the following statements is wrong about pesticides p, p'-DDT?

p, p'-DDT was used for agricultural applications only.

Which of the following is not a benefit of pesticide use? biological magnification

What is bioaccumulation? 生物积累

When a substance builds up in the body because the body does not have the proper mechanisms to remove it.

二、选择题

1:Using a periodic table IIA,period 5—Sr,strontium IVA,period 3—Si,silicon VA,period4-As

2:Elements in the same family .have similar chemical properties

Elements in the same period.have same number of electron layers

3:不同主族，价电子层有几个电子

How many electrons are there in the valence shell of the sodium钠 atom? 1

How many electrons are there in the valence shell of the chlorine氯 atom? 7

4:more polar?O—O无极性；H—O大；F—O小；F—H更大

5:not polarCF3非极性；NF3有极性；SiH4非极性；H2O有极性；C2H6有极性

6:同一周期电负性比较

more electronegative than sulfur(S)?Te；Al；Si；P都不是

more electronegative than oxygen(O)? F

8:The molecular shape of the phosphine molecule,PH3 is ______. D

A、linear 直线型 CO2 B、angular 角型CO C、trigonal planar 三角锥型SO2D、trigonal pyramidal 三角双锥型 H2O

9:容量分析，重量分析是什么学科

analytical chemistry

10：热力学，动力学，统计力学，量子力学几个学科研究什么

Thermodynamics studies___. (A)

(A)heat,work,energy,and the changes they produce in the states of systems.

(B)the relationships between the molecules of a system

(C)heat,work,temperature,and the energy produced in the states of system

(D)heat,energy,and work

In___________,the molecular and macroscopic levels are related to each other. (C)

(A)quantum (B)thermodynamics

(C)statistical mechanics (D)kinetics

11、For a Isolated system,neither matter nor energy can be transferred between system and surroundings.

For a closed system,energy but not matter can be transferred between system and surroundings.

For an open system,both matter and energy can be transferred between system and surroundings.

12：Examples of degradable可降解 pollutants are DDT and radioactive materials.

Examples of nondegradable不可降解 pollutants are mercury,lead and some of their compounds and some plastics.

A primary air pollutant is a chemical added directly to the air that occur in a harmful concentration

13、What type of instrument allows you to determine the mass of a compound? a mass spectrometer

What type of instrument is effective at separating the components of a mixture based on their affinity for an adsorbent material and uses high pressure pumps? HPLC

14：比较沸点 醇（最高）醚 > 胺 烷烃（最低）Arrange the following in order of increasing boiling point.

C2H5OH CH3CH2CH3 CH3OCH3 CH3CH2NH2 II < III < IV < I

15：农药

According to text, what percentage of world's food production do pests destroy each year?30%~48%

According to text, which of the following statements is wrong about pesticides p, p'-DDT?

p, p'-DDT was used for agricultural applications only.

Which of the following is not a benefit of pesticide use? biological magnification

What is bioaccumulation? 生物积累

When a substance builds up in the body because the body does not have the proper mechanisms to remove it.

二、选择题

1:Using a periodic table IIA,period 5—Sr,strontium IVA,period 3—Si,silicon VA,period4-As

2:Elements in the same family .have similar chemical properties

Elements in the same period.have same number of electron layers

3:不同主族，价电子层有几个电子

How many electrons are there in the valence shell of the sodium钠 atom? 1

How many electrons are there in the valence shell of the chlorine氯 atom? 7

4:more polar?O—O无极性；H—O大；F—O小；F—H更大

5:not polarCF3非极性；NF3有极性；SiH4非极性；H2O有极性；C2H6有极性

6:同一周期电负性比较

more electronegative than sulfur(S)?Te；Al；Si；P都不是

more electronegative than oxygen(O)? F

8:The molecular shape of the phosphine molecule,PH3 is ______. D

A、linear 直线型 CO2 B、angular 角型CO C、trigonal planar 三角锥型SO2D、trigonal pyramidal 三角双锥型 H2O

9:容量分析，重量分析是什么学科

analytical chemistry

10：热力学，动力学，统计力学，量子力学几个学科研究什么

Thermodynamics studies___. (A)

(A)heat,work,energy,and the changes they produce in the states of systems.

(B)the relationships between the molecules of a system

(C)heat,work,temperature,and the energy produced in the states of system

(D)heat,energy,and work

In___________,the molecular and macroscopic levels are related to each other. (C)

(A)quantum (B)thermodynamics

(C)statistical mechanics (D)kinetics

11、For a Isolated system,neither matter nor energy can be transferred between system and surroundings.

For a closed system,energy but not matter can be transferred between system and surroundings.

For an open system,both matter and energy can be transferred between system and surroundings.

12：Examples of degradable可降解 pollutants are DDT and radioactive materials.

Examples of nondegradable不可降解 pollutants are mercury,lead and some of their compounds and some plastics.

A primary air pollutant is a chemical added directly to the air that occur in a harmful concentration

13、What type of instrument allows you to determine the mass of a compound? a mass spectrometer

What type of instrument is effective at separating the components of a mixture based on their affinity for an adsorbent material and uses high pressure pumps? HPLC

14：比较沸点 醇（最高）醚 > 胺 烷烃（最低）Arrange the following in order of increasing boiling point.

C2H5OH CH3CH2CH3 CH3OCH3 CH3CH2NH2 II < III < IV < I

15：农药

According to text, what percentage of world's food production do pests destroy each year?30%~48%

According to text, which of the following statements is wrong about pesticides p, p'-DDT?

p, p'-DDT was used for agricultural applications only.

Which of the following is not a benefit of pesticide use? biological magnification

What is bioaccumulation? 生物积累

When a substance bui 内容过长，仅展示头部和尾部部分文字预览，全文请查看图片预览。 CH3CH2NH2 II < III < IV < I

15：农药

According to text, what percentage of world's food production do pests destroy each year?30%~48%

According to text, which of the following statements is wrong about pesticides p, p'-DDT?

p, p'-DDT was used for agricultural applications only.

Which of the following is not a benefit of pesticide use? biological magnification

What is bioaccumulation? 生物积累

When a substance builds up in the body because the body does not have the proper mechanisms to remove it.

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