a. Choose the correct balanced equation for the following half-reaction. Cr20,2 (aq) → Cr³* (aq) (acid solution) O Cr20,2 (aq) + 7 H* (aq) → 2 Cr* (aq) + 7 H2O(£) + e- O Cr20;2 (aq) + 14 H* (aq) + 6 e¯ → 2 Cr** (aq) + 7 H20(!) OCr20,2 (aq) + 14 H* (aq) → 2 Cr*+ (aq) + 7 H2O(£) + 6 e- OC20, (aq) + 7 H* (aq) + e¯ → 2 Cr*+ (aq) + 7 H2O(L) b. Choose the correct balanced equation for the following half-reaction. CO; (aq) → Cl (aq) (acid solution) ОСОз (аq) + 3н" (аq) — СТ (аq) + 3 H,0(0) + 3 е- O CIO3- (aq) + 6 H* (aq) + 6 e¯ → Cl¯ (aq) + 3 H2O(e) ОССО3 (aq) + 3н" (аq) + 3 е — с (аq) + 3 Н,О(0) O CIO,- (aq) + 6 H* (aq) → Cl¯ (aq) + 3 H2O(€) c. Choose the correct balanced equation for the following half-reaction. N2H4 (aq) → N2(g) (basic solution) O N2H4 (aq) + 2 OH (aq) + 4 e¯ → N2(g) + 2 H2O(t) ON,H4 (aq) + 4 H* (aq) + 4 e¯ → N2(g) + 4 H2 (g) ON,H4 (aq) + 4 H*(aq) → N2(g) + 4 H2O(!) +4 e- O N2H4 (aq) + 4 OH (aq) → N2(g) + 4 H2O(4) + 4 e d. Choose the correct balanced equation for the following half-reaction. Cio (aq) + Cl (aq) (basic solution) O cio (aq) + H20(t) → Cl¯(aq) +2 OH¯(aq) +4 e O cio (aq) + 2 OH (aq) +2 e¯ → Cl¯(aq) + H2O(l) О СО (аq) + H-0(() + 2 е — С (aq) + 2 ОН (ад) О СО (аq) + 2 ОН (аq) — СГ (аq) + H;0(() + 4е
a. Choose the correct balanced equation for the following half-reaction. Cr20,2 (aq) → Cr³* (aq) (acid solution) O Cr20,2 (aq) + 7 H* (aq) → 2 Cr* (aq) + 7 H2O(£) + e- O Cr20;2 (aq) + 14 H* (aq) + 6 e¯ → 2 Cr** (aq) + 7 H20(!) OCr20,2 (aq) + 14 H* (aq) → 2 Cr*+ (aq) + 7 H2O(£) + 6 e- OC20, (aq) + 7 H* (aq) + e¯ → 2 Cr*+ (aq) + 7 H2O(L) b. Choose the correct balanced equation for the following half-reaction. CO; (aq) → Cl (aq) (acid solution) ОСОз (аq) + 3н" (аq) — СТ (аq) + 3 H,0(0) + 3 е- O CIO3- (aq) + 6 H* (aq) + 6 e¯ → Cl¯ (aq) + 3 H2O(e) ОССО3 (aq) + 3н" (аq) + 3 е — с (аq) + 3 Н,О(0) O CIO,- (aq) + 6 H* (aq) → Cl¯ (aq) + 3 H2O(€) c. Choose the correct balanced equation for the following half-reaction. N2H4 (aq) → N2(g) (basic solution) O N2H4 (aq) + 2 OH (aq) + 4 e¯ → N2(g) + 2 H2O(t) ON,H4 (aq) + 4 H* (aq) + 4 e¯ → N2(g) + 4 H2 (g) ON,H4 (aq) + 4 H*(aq) → N2(g) + 4 H2O(!) +4 e- O N2H4 (aq) + 4 OH (aq) → N2(g) + 4 H2O(4) + 4 e d. Choose the correct balanced equation for the following half-reaction. Cio (aq) + Cl (aq) (basic solution) O cio (aq) + H20(t) → Cl¯(aq) +2 OH¯(aq) +4 e O cio (aq) + 2 OH (aq) +2 e¯ → Cl¯(aq) + H2O(l) О СО (аq) + H-0(() + 2 е — С (aq) + 2 ОН (ад) О СО (аq) + 2 ОН (аq) — СГ (аq) + H;0(() + 4е
Chemistry
10th Edition
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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Transcribed Image Text:a. Choose the correct balanced equation for the following half-reaction.
Cr2 0,2 (aq) → Cr** (aq) (acid solution)
3+
O Cr2 0,2 (aq) + 7 H* (aq) → 2 Cr³+ (aq) + 7 H2O(€) +e-
Сrр072 (аq) + 14н" (аq) + 6 е — 2 Cr* (aq) + 7 H2О(0)
O Cr2 0,2 (aq) + 14 H* (aq) → 2 Cr** (aq) + 7 H2O(l) + 6 e-
O Cr2 0,2 (aq) + 7 H* (aq) + e → 2 Cr*+ (aq) + 7 H,0(£)
b. Choose the correct balanced equation for the following half-reaction.
CIO3 (aq) → Cl (aq) (acid solution)
ОСIО3 (аq) + 3н (аq) — СІ (аq) + 3 НәО(() + 3е
OСIO3 (аq) + 6н" (аq) + 6 е — СГ (аq) + 3 Н,0(€)
O CIO3- (aq) + 3 H* (aq) + 3 e → Cl¯(aq) + 3 H2O(4)
ОСIОЗ (аq) + 6 н" (аq) — СІ (аq) + з Н-0()
c. Choose the correct balanced equation for the following half-reaction.
N2H4 (aq) → N2(g) (basic solution)
O N,H4 (aq) + 2 OH (aq) + 4 e → N2(g) + 2 H2O(e)
ON,H4 (aq) + 4 H* (aq) + 4 e N2 (g) + 4 H2 (g)
ON,H4 (aq) + 4 H* (aq) → N2 (g) + 4 H2O(l) + 4 e-
O N,H4 (aq) + 4 OH (aq) → N2 (g) + 4 H2O(l) + 4 e
d. Choose the correct balanced equation for the following half-reaction.
CIO (aq) → Cl (aq) (basic solution)
CIО (аq) + Н-0(() —— СІ (аq) +2 ОН (аq) + 4е
СIО (ад) + 2 Он (аqд) + 2 е CI (aq) + H20(@)
СIО (аq) + Н0() + 2 е — СI (аq) + 2 ОН (аq)
СIО (ад) + 2 Он (аqд) — СІ (аq) + H-0(€) + 4 e
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