Examine the following half-reactions and select the weakest reducing agent among the substances.
Cr(OH) ₃(s) + 3e^-
Cr(s) + 3OH^-(aq) ;E° = -1.48 V
SnO₂(s) + 2H₂O(l) + 4e^-
Sn(s) + 4OH^-(aq) ;E° = -0.945 V
MnO₂(s) + 4H⁺(aq) + 2e^-
Mn²⁺(aq) + 2H₂O(l) ;E° = 1.224 V
Hg₂SO₄(s) + 2e^-
2Hg(l) + SO₄^2-(aq) ;E° = 0.613 V

Question

Examine the following half-reactions and select the weakest reducing agent among the substances.
Cr(OH) ₃(s) + 3e^-

Examine the following half-reactions and select the weakest reducing agent among the substances. Cr(OH) <sub>3</sub>(s) + 3e<sup>-</sup> Cr(s) + 3OH<sup>-</sup>(aq) ;E° = -1.48 V SnO<sub>2</sub>(s) + 2H<sub>2</sub>O(l) + 4e<sup>-</sup> Sn(s) + 4OH<sup>-</sup>(aq) ;E° = -0.945 V MnO<sub>2</sub>(s) + 4H<sup>+</sup>(aq) + 2e<sup>-</sup> Mn<sup>2+</sup>(aq) + 2H<sub>2</sub>O(l) ;E° = 1.224 V Hg<sub>2</sub>SO<sub>4</sub>(s) + 2e<sup>-</sup> 2Hg(l) + SO<sub>4</sub><sup>2-</sup>(aq) ;E° = 0.613 V A) Cr(s) B) Sn(s) C) Mn<sup>2+</sup>(aq) D) Hg(l) E) OH<sup>-</sup>(aq)

Cr(s) + 3OH^-(aq) ;E° = -1.48 V
SnO₂(s) + 2H₂O(l) + 4e^-

Sn(s) + 4OH^-(aq) ;E° = -0.945 V
MnO₂(s) + 4H⁺(aq) + 2e^-

Mn²⁺(aq) + 2H₂O(l) ;E° = 1.224 V
Hg₂SO₄(s) + 2e^-

2Hg(l) + SO₄^2-(aq) ;E° = 0.613 V

Quizplus · Accepted Answer

The Answer of Examine the following half-reactions and select the weakest reducing agent among the substances. Cr(OH)₃(s)+ 3e^- Cr(s)+ 3OH^-(aq);E° = -1.48 V SnO₂(s)+ 2H₂O(l)+ 4e^- Sn(s)+ 4OH^-(aq);E° = -0.945 V MnO₂(s)+ 4H⁺(aq)+ 2e^- Mn²⁺(aq)+ 2H₂O(l);E° = 1.224 V Hg₂SO₄(s)+ 2e^- 2Hg(l)+ SO₄^2-(aq);E° = 0.613 V

Examine the Following Half-Reactions and Select the Weakest Reducing Agent