CHEM 120 Quiz 1 Q and A
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- Lectmarcus
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Grading Summary
These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below.
Date Taken: 7/12/2015
Time Spent: 38 min , 01 secs
Points Received: 36 / 40 (90%)
Question Type: # Of Questions: # Correct:
Multiple Choice 7 6
Short 5 N/A
Essay 1 N/A
Grade Details - All Questions
Question 1. Question :
(TCO 2) The atomic number of an atom is equal to the number of
Student Answer:
CORRECT protons.
Instructor Explanation: See Chapter 3; the atomic number = number of protons.
Points Received: 2 of 2
Comments:
Question 2. Question :
(TCO 2) Consider a neutral atom with 30 protons and 34 neutrons. The number of electrons in this atom is
Student Answer:
CORRECT 30.
Instructor Explanation: See Chapter 3. In a neutral atom, the number of protons equals the number of electrons. Therefore, the number of electrons in this instance is 30.
Points Received: 2 of 2
Comments:
Question 3. Question :
(TCO 2) Heptane is always composed of 84% carbon and 16% hydrogen. This illustrates the law of
Student Answer:
CORRECT definite proportions.
Instructor Explanation: See Chapter 2.
Points Received: 2 of 2
Comments:
[Solved] CHEM 120 Quiz 1 Q and A
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- Submitted On 08 Mar, 2021 05:31:00
- Lectmarcus
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- Grade : No Rating
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- Solutions : 64
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