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Consider the Following Standard Reduction Potentials

question 109

Multiple Choice

Consider the following standard reduction potentials:
2H+(aq) + 2e- Consider the following standard reduction potentials: 2H<sup>+</sup>(aq) + 2e<sup>-</sup>  H<sub>2</sub>(g) ; E° = 0.00 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Which pair of substances will react spontaneously under standard-state conditions? A) Cd with H<sup>+</sup> B) Cd with Sn C) Sn<sup>2+</sup> with Cd<sup>2+</sup> D) Sn with Cd<sup>2+</sup> E) Sn<sup>2+</sup> with H<sup>+</sup>H2(g) ; E° = 0.00 V
Sn2+(aq) + 2e- Consider the following standard reduction potentials: 2H<sup>+</sup>(aq) + 2e<sup>-</sup>  H<sub>2</sub>(g) ; E° = 0.00 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Which pair of substances will react spontaneously under standard-state conditions? A) Cd with H<sup>+</sup> B) Cd with Sn C) Sn<sup>2+</sup> with Cd<sup>2+</sup> D) Sn with Cd<sup>2+</sup> E) Sn<sup>2+</sup> with H<sup>+</sup>Sn(s) ; E° = -0.15 V
Cd2+(aq) + 2e- Consider the following standard reduction potentials: 2H<sup>+</sup>(aq) + 2e<sup>-</sup>  H<sub>2</sub>(g) ; E° = 0.00 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Which pair of substances will react spontaneously under standard-state conditions? A) Cd with H<sup>+</sup> B) Cd with Sn C) Sn<sup>2+</sup> with Cd<sup>2+</sup> D) Sn with Cd<sup>2+</sup> E) Sn<sup>2+</sup> with H<sup>+</sup>Cd(s) ; E° = -0.40 V
Which pair of substances will react spontaneously under standard-state conditions?


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