2022大学慕课答案 Inorganic and Analytical Chemistry(Northwest A&F University) 最新大学MOOC满分章节测试答案
- The Rate and Limitation of Chemical Reactions Unit test
- Solutions and Colloids Unit test
- 【作业】Solutions and Colloids HOMEWORK
- Introduction to The Structure of Matter Unit test
- The Energy and Direction of a Chemical Reactions Unit test
- Coordination Compound and Coordination Titration Unit test
- REDOX Reaction and REDOX Titration Unit test
- Precipitation-dissolution Equilibrium and Precipitation Titration Unit test
- Acid-base Equilibrium and Acid-base Titration Unit test
- Potential Analysis Unit test
- Introduction to Analytical Chemistry Unit test
- Absorbance Photometric Analysis Unit test
- Exercises Exercise one
- Exercises Exercise two
本答案对应课程为:点我自动跳转查看
本课程起止时间为:2022-02-21到2022-06-12
The Rate and Limitation of Chemical Reactions Unit test
1、 问题:Factor affecting the speed of reaction does not include
选项：
A:Temperature
B: concentration
C:catalyst
D:volume
答案: 【volume 】
2、 问题:For the reaction A+2B →D+2E, the rate equation is rate = k[A][B]2 , then it is
选项：
A: Doubled when [A] is doubled keeping B constant
B:Doubled when [B] is doubled keeping A constant
C:the overall order being 2
D:elementary reaction
答案: 【 Doubled when [A] is doubled keeping B constant】
3、 问题:If the concentration of the reactants is decreased, the rate of reaction
选项：
A:Will increase
B:will remain unaffected
C:will decrease
D:cannot be determined
答案: 【will decrease】
4、 问题:Which choice listed below is wrong when we talk about the order of reaction
选项：
A: The order of reaction can be a fraction.
B:The order of reaction can be a positive integer.
C:The order of reaction only can be ascertained by experiment.
D:The order of reaction can be a negative number.
答案: 【The order of reaction only can be ascertained by experiment.】
5、 问题:If the reaction of 2A+B → C is a elementary reaction, which choice listed below is true?
选项：
A:it is a second order reaction
B:it is a slow reaction
C:it is a second order reaction to B
D:it is a second order reaction to A
答案: 【it is a second order reaction to A】
6、 问题:If you increase the concentration of A by a factor of 4, the rate goes up 4 times as well.
选项：
A:正确
B:错误
答案: 【错误】
7、 问题:The overall order of the reaction is found by adding up the individual orders.
选项：
A:正确
B:错误
答案: 【错误】
8、 问题:The Average Rate and Instantaneous Rate are equal to each other.
选项：
A:正确
B:错误
答案: 【错误】
9、 问题:The rate of a certain chemistry reaction always increases with the addition of catalyst, no matter what kind of catalyst.
选项：
A:正确
B:错误
答案: 【错误】
10、 问题:In transition state theory, the rate of reaction mainly depends on the rate of decomposition of the activated complex.
选项：
A:正确
B:错误
答案: 【正确】
Solutions and Colloids Unit test
1、 问题:There are four water solutions of the equal volume in which there are equal mass of glucose(M=180), CaCl2(M=111), NaHCO3 (M=84)and urea(M=60) respectively. The order of boiling-point of these solutions is?
选项：
A:glucose
B:sucrose
C:CaCl2
D:NaHCO3
答案: 【NaHCO3】
2、 问题:The values of the vapor pressure lowering,boiling point elevation, freezing point depression of nonelectrolyte depend on
选项：
A:the volume of the solution
B:the nature of the solute
C:the molality of the solute in the solution
D:the temperature of the solution
答案: 【the molality of the solute in the solution】
3、 问题:Which of the following shows Tyndall effect?
选项：
A:Colloids
B:True Solution
C:Suspension
D:no answer here
答案: 【Colloids】
4、 问题:There are four water solutions of the equal volume in which there are equal mass of glucose(M=180), CaCl2(M=111), NaHCO3 (M=84)and urea(M=60) respectively. The order of boiling-point of these solutions is?
选项：
A:urea > glucose> NaHCO3>CaCl2
B:urea >glucose >CaCl2 >NaHCO3
C:NaHCO3 >CaCl2 >glucose >urea
D:CaCl2> NaHCO3>urea> glucose
答案: 【CaCl2> NaHCO3>urea> glucose】
5、 问题:Colloidal AgI particles are prepared by mixing same volume 0.006 mol·L-1 KI and 0.01 mol·L-1 AgNO3 solution. Which of the following would be most effective in coagulating such a colloidal AgI
选项：
A:K2SO4
B:K3PO4
C:KCl
D:KNO3
答案: 【K3PO4】
6、 问题:when NaCl is sprinkled on grass, the grass withers and dies. This occurs because of the poisonous nature of NaCl.
选项：
A:正确
B:错误
答案: 【错误】
7、 问题:Colligative properties do not depend on nature of solute particles.
选项：
A:正确
B:错误
答案: 【正确】
8、 问题:When an electrolyte is added to a colloidal solution, the ions of the electrolyte may cancel the charge on the colloidal particles and render them electrically neutral.
选项：
A:正确
B:错误
答案: 【正确】
9、 问题:Colloidal Solution is a heterogeneous mixture in which particle size of substance is intermediate of true solution and suspension.
选项：
A:正确
B:错误
答案: 【正确】
10、 问题:Colloids show some unique properties like Tyndall Effect, Brownian Movement, Electrophoresis & Electro Osmosis.
选项：
A:正确
B:错误
答案: 【正确】
【作业】Solutions and Colloids HOMEWORK
1、 问题: A sol of AgI is prepared by mixing equal volumes of 0.1 mol·L-1 AgNO3 and 0.2 mol·L-1 KI.please write the structure of this sol.
评分规则: 【 right 10 points
】
Introduction to The Structure of Matter Unit test
1、 问题:What are the quantum numbers which determine the energy of the electron in many-electron atom?
选项：
A:n
B:n and l
C:l
D:n, l and m
答案: 【n and l】
2、 问题:The wave function can be used to describe
选项：
A:the motion of the electron in space.
B:the probability of finding an electron in a certain region.
C:the motion of the electron in a certain orbit.
D:the shape of the electron cloud
答案: 【the probability of finding an electron in a certain region.】
3、 问题:Which of the following sets of quantum numbers is permissible for an orbital
选项：
A:4,-2,0,-1/2
B:1,0,0, 1/2
C:4,4,0,-1/2
D:3,0,-1,-1/2
答案: 【1,0,0, 1/2】
4、 问题:The energy level of the electron in a many-electron atom will not be affected by what factor listed below
选项：
A: The orientation of the electron cloud in the space.
B:Effective nuclear charge
C:The number of inner electrons
D:Shielding effect
答案: 【 The orientation of the electron cloud in the space.】
5、 问题:The electron configuration of A atom is 1s22s22p63s23p63d64s2, then the element belongs to which subgroup in the periodic table?
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