(7.2b) Complete and balance the following by ion-electron method. Reactions are taking place in alkaline solution. b) Cr(OH)) + CIO (aq) - Cro, (aq) • Clup Analysis: Balancing under acidic condition first (adding H30 & H") Oxidation-Half reation: Balancing atoms & charges: Cr(OH)y) * H20 - Cro, ug + H' + Reduction-Half reation: Balancing atoms and charges: CIO (aq Cip H,0 Balancing electrons lost & gained Multiply oxidation-half reaction by Multiply reduction-half reaction by e's Final balanced equation: Continue next page.

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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(7.2b) Complete and balance the following
by ion-electron method. Reactions are
taking place in alkaline solution.
b) Cr(OH)a) + CIO (nq) - Cro, (aq)
Analysis: Balancing under acidic condition
first (adding H30 & H")
Oxidation-Half reation: Balancing atoms &
charges:
Cr(OH)x) *
H20
- Cro, ug *
H' +
Reduction-Half reation: Balancing atoms
and charges:
10 taq
H20
Balancing electrons lost & gained
Multiply oxidation-half reaction
by
Multiply reduction-half reaction
by
e's
Final balanced equation: Continue next
page.
Transcribed Image Text:(7.2b) Complete and balance the following by ion-electron method. Reactions are taking place in alkaline solution. b) Cr(OH)a) + CIO (nq) - Cro, (aq) Analysis: Balancing under acidic condition first (adding H30 & H") Oxidation-Half reation: Balancing atoms & charges: Cr(OH)x) * H20 - Cro, ug * H' + Reduction-Half reation: Balancing atoms and charges: 10 taq H20 Balancing electrons lost & gained Multiply oxidation-half reaction by Multiply reduction-half reaction by e's Final balanced equation: Continue next page.
Fill in the blanks:
(7.2b, continued) Complete and balance the
following by ion-electron method. Reactions
are taking place in alkaline solution.
b) Cr(OH)3(s) + ClO (aq) - Cro42(aq) +
Cl2(g)
Analysis: Previous page.
Final Balanced equation:
Cr(OH)3(s)
Clo (aq)
Cro4 (aq) *
Cl2(g) +
OH
H20
Important: Check that number of atoms &
charges are balanced.
Transcribed Image Text:Fill in the blanks: (7.2b, continued) Complete and balance the following by ion-electron method. Reactions are taking place in alkaline solution. b) Cr(OH)3(s) + ClO (aq) - Cro42(aq) + Cl2(g) Analysis: Previous page. Final Balanced equation: Cr(OH)3(s) Clo (aq) Cro4 (aq) * Cl2(g) + OH H20 Important: Check that number of atoms & charges are balanced.
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