CHM 101 Introductory Chemistry Review Test Submission: Exam 1 Questions and Answers

Review Test Submission: Exam 1
Content

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Course CHM 101: Introductory Chemistry (2018
Spring - B)
Test Exam 1
Started 3/27/18 8:26 PM
Submitted 3/27/18 9:38 PM
Due Date 3/27/18 11:59 PM
Status Completed
Attempt Score 66 out of 100 points
Time Elapsed 1 hour, 12 minutes out of 1 hour and 20
minutes
Results All Answers, Submitted Answers, Correct
Displayed Answers
false


 Question 1

2 out of 2 points



A pure substance is:
Selected
Answer: composed of only one type of atom or molecule.
Answers: composed of two or more different types of atoms or
molecules combined in variable proportions.

composed of only one type of atom or molecule.
composed of two or more regions with different
compositions.
composed of two or more different types of atoms or
molecules that has constant composition.
none of these

 Question 2

2 out of 2 points

,What is correct name of the compound whose formula is BF3 ?
Selected
Answer: boron trifluoride
Answers:
boron trifluoride
boron fluoride
monoboron
trifluorine
boron(III) fluoride
none of these

 Question 3

2 out of 2 points



What is the name of HI?
Selected
Answer: hydroiodic
acid
Answers: hydroiodous
acid

hydroiodic
acid
iodic acid
iodous acid
none of these

 Question 4

2 out of 2 points



The correct number of significant figures in the number 0.027090 is:
Selected
Answer: 5
Answers: 7
6

, 5
ambiguous
none of
these

 Question 5

2 out of 2 points



What is the value of 27°C on the Kelvin temperature scale?
Selected
Answer: 300
Answers: 273
246

300
81
none of
these

 Question 6

2 out of 2 points



What is the formula for an ionic compound made of carbon and oxygen?
Selected
Answer: Carbon and oxygen do not form an ionic
compound.
Answers: CO2
C2O
CO
CO3

Carbon and oxygen do not form an ionic
compound.

 Question 7

2 out of 2 points