WebAssign is not supported for this browser version. Some features or content might not work. System requirements

WebAssign

Welcome, demo@demo

(sign out)

Friday, March 28, 2025 16:33 EDT

Home My Assignments Grades Communication Calendar My eBooks

Wertz - Chemistry - A Molecular Science 3/e (Homework)

James Finch

Chemistry - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 20 / 20

Due : Wednesday, March 25, 2020 23:00 EDT

Last Saved : n/a Saving...  ()

Print Assignment
Question
Points
1 2 3 4 5
–/3 –/4 –/5 –/4 –/4
Total
20/20 (100.0%)

  • Instructions

    WebAssign is proud to be the exclusive online homework solution for Chemistry - A Molecular Science 3/e, a textbook by Dennis Wertz of North Carolina State University.

    Chemistry, 3e includes a complete bank of homework and assessment questions from the textbook. Each question includes a link to the digital version of the relevant chapter of the printable eBook. The eBook is fully interactive and includes embedded video clips, practice exercises, and hyperlinks to additional resources and other relevant material.

    Click here for a list of all of the questions coded in WebAssign. This demo assignment allows many submissions and allows you to try another version of the same question for practice wherever the problem has randomized values.

Assignment Submission

For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

Assignment Scoring

Your last submission is used for your score.

1. –/3 points WertzCAMS3 5.P.001. My Notes
Question Part
Points
Submissions Used
1 2 3
–/1 –/1 –/1
0/50 0/50 0/50
Total
–/3
 
What are the approximate percent ionic characters of the following bonds? (See the Periodic Table by Electronegativity and this Nomogram.)
(a)    Na-C
(No Response) seenKey

47.2

 %

(b)    Li-Cl
(No Response) seenKey

69.2

 %

(c)    K-P
(No Response) seenKey

37

 %
Viewing Saved Work Revert to Last Response
2. –/4 points WertzCAMS3 5.P.004. My Notes
Question Part
Points
Submissions Used
1 2 3 4
–/1 –/1 –/1 –/1
0/50 0/50 0/50 0/50
Total
–/4
 
Determine the bond type of each of the following bonds. (See the Periodic Table by Electronegativity.)
(a)    C-F
    


(b)    Si-P
    


(c)    Sn-Cl
    


(d)    S-Se
    
Viewing Saved Work Revert to Last Response
3. –/5 points WertzCAMS3 5.P.010. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5
–/1 –/1 –/1 –/1 –/1
0/50 0/50 0/50 0/50 0/50
Total
–/5
 
Write formulas for the following substances.
(a) ammonia

chemPad

Help

 
NH3

(b) dinitrogen pentoxide

chemPad

Help

 
N2O5

(c) dichlorine

chemPad

Help

 
Cl2

(d) chlorine trifluoride

chemPad

Help

 
ClF3

(e) dinitrogen

chemPad

Help

 
N2
Viewing Saved Work Revert to Last Response
4. –/4 points WertzCAMS3 5.P.012. My Notes
Question Part
Points
Submissions Used
1 2 3 4
–/1 –/1 –/1 –/1
0/50 0/50 0/50 0/50
Total
–/4
 
Name each compound.
(a)    FeCl2
(No Response) seenKey

iron(II) chloride

(b)    CoF3
(No Response) seenKey

cobalt(III) fluoride

(c)    N2O3
(No Response) seenKey

dinitrogen trioxide

(d)    OF2
(No Response) seenKey

oxygen difluoride
Viewing Saved Work Revert to Last Response
5. –/4 points WertzCAMS3 5.P.014. My Notes
Question Part
Points
Submissions Used
1 2 3 4
–/1 –/1 –/1 –/1
0/50 0/50 0/50 0/50
Total
–/4
 
Draw the Lewis structure of the formate ion, HCO2−. (Assign lone pairs, radical electrons, and atomic charges where appropriate.)
(No Response)
Marvin JS

Calculate the electrons required (ER), valence electrons (VE), and shared pairs (SP).
ER     (No Response) seenKey

26
VE     (No Response) seenKey

18
SP     (No Response) seenKey

4
Viewing Saved Work Revert to Last Response
Home My Assignments