Course CHM 101: Introductory Chemistry (2017
Spring - A)
Test Exam 2
Started
Submitted
Due Date 2/14/17 11:59 PM
Status Completed
Attempt Score 68 out of 100 points
Time Elapsed 1 hour, 17 minutes out of 1 hour and 30
minutes
Results All Answers, Submitted Answers, Correct
Displayed Answers
Question 1
0 out of 2 points
Which of the following compounds is INSOLUBLE?
Selected
Answer:
magnesium
bromide
Answers: potassium
acetate
lithium
carbonate
magnesium
bromide
aluminum
sulfide
none of these
Question 2
2 out of 2 points
The principal quantum number (n):
Selected
Answer:
specifies the principal shell of the
orbital.
Answers: specifies the 3-D shape of the
orbital.
specifies the subshell of the
orbital.
specifies the maximum number of
electrons.
, specifies the principal shell of the
orbital.
none of these
Question 3
0 out of 2 points
How many hydrogen atoms are in 35.0 grams of hydrogen gas?
Selected
Answer: 2.12 x
1025
Answers: 4.25 x
1025
2.09 x
1025
2.12 x
1025
1.05 x
1025
none of
these
Question 4
0 out of 2 points
What is the gas produced when hydrochloric acid is reacted with
ammonium carbonate?
Selected
Answer: ammonia
Answers: ammonia
chlorine
hydrogen
carbon
dioxide
none of
these
Question 5
2 out of 2 points
An aqueous solution is:
, Selected
Answer:
water with another compound
dissolved in it.
Answers: any liquid with another compound
dissolved in it.
an ionic compound with water
dissolved in it.
water with a molecular compound
dissolved in it.
water with another compound
dissolved in it.
none of these
Question 6
2 out of 2 points
Which one of the following is the correct orbital diagram for nitrogen?
Selected
Answer:
↑↓ ↑↓ ↑
↑↑
Answers: ↑↓ ↑↓ ↓
↓↑
↑↓ ↓↓ ↑
↓↑
↑↓ ↓↓ ↑
↑↑
↑↓ ↑↓ ↑
↑↑
none of
these
Question 7
0 out of 2 points
What happens to an atom when it absorbs energy?
Selected
Answer:
The atom stores the energy for later use.
Answers: The atom stores the energy for later use.
The extra energy increases the speed of the electrons