(SECONDARY)
(Redox Reactions and Electrochemistry)
(June 2011)
Unit Statement: Unit ten introduces the concept of oxidation-reduction reactions, including balancing such reactions. The concept is extended to electrochemical cells and potential.
Essential Outcomes: (must be assessed)
1.
T he S tudent W ill contrast oxidation and reduction. (p. 692-696)
2.
TSW assign oxidation numbers to a variety of compounds. (p. 701-703)
3.
TSW define oxidation and reduction in terms of a change in oxidation number. (p. 704-706)
4.
TSW balance redox reactions using the oxidation-number-change method. (p. 709-711)
5.
TSW balance redox reactions using the half reaction method. (p. 712-715)
6.
TSW describe how a voltaic cell produces electrical energy. (p. 730-732)
7.
TSW calculate the standard reduction potential for half-cells. (p. 738-740)
8.
TSW determine if a given redox reaction will occur spontaneously. (p. 741-743)
9.
TSW contrast electrolytic and voltaic cells. (p. 745-746)
10.
TSW summarize some applications that use electrolytic cells. (p. 746-751)
Introduced and Practiced Outcomes:
1.
T he S tudent W ill explain how the presence of salts and acids accelerates the corrosion of metals. (p. 697-698)
2.
TSW identify two classes of chemical reactions. (p. 707-708 )
3.
TSW identify the type of chemical reaction that is involved in all electrochemical processes. (p. 728)
4.
TSW identify the current applications that use electrochemical processes to produce electrical energy. (p. 732-735)
32
QSI CHEMISTRY SEC E10
Copyright © 1988-2011

Suggested Materials:
PC Chapters 20 and 21 plus selected laboratory materials and equipment.
Pearson Chemistry Reading and Study Workbook (Abbreviated RSW)
Pearson Chemistry Classroom Resources DVD-ROM (Abbreviated CR)
Pearson Chemistry ExamView CD-ROM (Abbreviated EV)
Pearson Chemistry Virtual Chemistry Lab (Abbreviated VCL)
Suggested Unit Resources:
1.
Quick Lab “Bleach It! Oxidize the Color Away” (PC p. 699) TSW 1
2.
Small Scale Lab “Half Reactions” (PC p. 717) TSW 5
3.
Practice Problems (PC p. 720-725) TSW 1-5
4.
Quick Lab “Electrochemical Analysis of Metals” (PC p. 750) TSW 5,7,8
5.
Small-Scale Lab “Electrolysis of Water” (PC p. 752) TSW 9,10
6.
Practice Problems (PC p. 754-759) TSW 6-10
Suggested Technology Resources:
Destiny Web Path Express (found on school’s automated library system) www.pearsonchem.com
www.chemtutor.com
www.chemistryhelp.net
http://www.khanacademy.org/
Virtual Lab number 30 “Redox Titrations: Determination of Iron” (VCL)
Suggested Assessment Tools and Strategies:
1.
Review worksheets and study guides (RSW pages 303-327)
2.
Quizzes and worksheets (CR)
3.
Teacher generated tests (EV)
RUBRIC FOUND ON FOLLOWING PAGE……………………….
33
QSI CHEMISTRY SEC E10
Copyright © 1988-2011

CHEMISTRY E10
(Secondary)
Suggested Rubric
TSW
1 – RedOx
2 – 3 Oxidation numbers
‘A’ Level Mastery
The student can analyze chemical reaction and identify the reducing and oxidizing agents.
The student can assign oxidation numbers to a chemical reaction and use the change in oxidation numbers to determine oxidized and reduced atoms.
‘B’ Level Mastery
The student can contrast oxidation and reduction.
The student can assign oxidation numbers to a variety of compounds.
4 – Balancing
RedOx
5 – Balancing
RedOx
6 – Voltaic Cells The student can build a voltaic cell and use it to produce electricity.
The student can balance redox reactions using the oxidationnumber-change method.
The student can balance redox reactions using the half reaction method.
The student can describe how a voltaic cell produces electrical energy.
7 – Half cells
8 –Reaction spontaneity
9 – Electrolytic and voltaic cells
The student can calculate the standard reduction potential for halfcells.
The student can determine if a given redox reaction will occur spontaneously.
The student can contrast electrolytic and voltaic cells
.
10 – Application of electrolytic cells
The student researches and summarizes a commercial application of electrolytic cells.
The student can summarize some applications that use electrolytic cells.
 To receive an ‘A’, the student must show ‘A’ level mastery in at all 4 available
TSW’s and ‘B’ level mastery on all of the remaining TSW’s.
 To receive a ‘B’, the student must show ‘B’ level mastery on all ten TSW’s.
34
QSI CHEMISTRY SEC E10
Copyright © 1988-2011