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Chamberlain College of Nursing: CHEM120 Midterm Exam (Latest-2022) / CHEM 120 Midterm Exam / CHEM120 Week 4 Midterm Exam / CHEM120 Unit 4 Midterm Exam: Chamberlain College of Nursing |100% Correct Answers, Already Graded “A”| $20.49
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Chamberlain College of Nursing: CHEM120 Midterm Exam (Latest-2022) / CHEM 120 Midterm Exam / CHEM120 Week 4 Midterm Exam / CHEM120 Unit 4 Midterm Exam: Chamberlain College of Nursing |100% Correct Answers, Already Graded “A”|
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Chamberlain College of Nursing: CHEM120 Midterm Exam (Latest-2022) / CHEM 120 Midterm Exam / CHEM120 Week 4 Midterm Exam / CHEM120 Unit 4 Midterm Exam: Chamberlain College of Nursing |100% Correct Answers, Already Graded “A”|

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  • February 21, 2022
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  • chamberlain college of nursing chem120 midterm exam latest 2022 chem 120 midterm exam chem120 week 4 midterm exam chem120 unit 4 midterm exam chamberlain college of nursing |100 correct ans

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CHEM 120 MIDTERM EXAM
1. Question : (TCO 3) The maximum number of electrons that may reside in the n=1
energy level is

Student Answer:
2.

3.

8.

10.

18.
Instructor Explanation: Chapter 3


2. Question : (TCO 3) How many electrons are in a potassium atom?

Student Answer:
15

19

23

39

84
Instructor Explanation: Chapter 3


3. Question : (TCO 3) Which is an impossible electron configuration?

Student Answer:
1s2 2s2

1s2 2s2 2p4

1s3 2s2 2p4

1s2 2s2 2p4 3s1

1s2 2s2 2p4 3s2

, Instructor Explanation: Chapter 3


4. Question : (TCO 3) The ground element with the ground state electron
configuration of 1s2 2s2 2p6 3s2 is

Student Answer:
Mg.

Ca.

Mn

Na.

Ne.
Instructor Explanation: Chapter 3


5. Question : (TCO 3) Which substance has ionic bonds?

Student Answer:
K2S

CO3

CCl4

N2

NH3
Instructor Explanation: Chapter 4


6. Question : (TCO 3) A nitride ion is _____.

Student Answer:
N+

N2-

N

N3+

N3-
Instructor Explanation: Chapter 4


7. Question : (TCO 3) The correct name for the compound N 2O3 is _____.

, Student
Answer: dinitrogen trioxide

nitrogen oxide

nitrogen trioxide

dinitride trioxide

dinitrogen oxide
Instructor Chapter 4; According to the rules of naming for covalent compounds, the correct
Explanation: name of N2O3 is dinitrogen trioxide. The first nonmetal is named by its elemental
name. The second nonmetal is named by its elemental name plus -ide. There are 2
nitrogens, so you add the prefix di-. There are 3 oxygens, so you add the prefix tri-.


8. Question : (TCO 4) If a central atom has a total of three groups and no lone pairs
attached to it, the geometry about the central atom is _____.

Student Answer:
linear

triangular

pyramidal

tetrahedral

None of the above
Instructor Explanation: Chapter 4


9. Question : (TCO 4) Which of the following is the electron dot structure for
hydrogen, H2?


10. Question : (TCO 4) Which substance has polar covalent bonds?

Student Answer:
SO2

N2

Cl2

CaO

None of the above
Instructor Explanation: Chapter 4

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