Chem 210 Module 2 Exam - Requires Respondus LockDown Browser + Webcam Comprehensive Questions (Frequently Tested) and Complete Solutions Graded A+

Module 2 Exam - Requires Respondus LockDown
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Due No due date Points 100 Questions 30
Time Limit 120 Minutes Requires Respondus LockDown Browser




Attempt History
Attempt Time Score
LATEST Attempt 1 56 minutes 82.5 out of 100



Score for this quiz: 82.5 out of 100
Submitted Mar 8 at 6:05pm
This attempt took 56 minutes.


Question 1 pts



Scientific Calculator (https://www.desmos.com/scientific)



The pH of a solution of 3.2 x 10-10 M NaOH is:

A. 3.7

B. 3.7 x 10-10

C. 4.5

D. 13

E. 8.7

, A


B

Correct Answer
C


You Answered D



E




Question 2 pts


Water is a unique molecule. Which of the following contributes to
water’s unique place in the chemical world?


The geometry of the molecule


The polarity of the O-H bonds


The ability of water molecules to hydrogen bond


The bond angle of water

Correct! All of the answers are correct




Question 3 pts

, The bent shape of water is due to ______________.




The dipole arrows in a water molecule


The electronegativity difference between hydrogen and oxygen


You Answered The unequal electron sharing between hydrogen and oxygen


Correct Answer The unshared electron pairs on the oxygen atom


None of the answers are correct




Question 4 pts



Which diagrams correctly represent a hydrogen bond?




A and B