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Given: Zn2+(aq)+ 2e- Zn(s); E° = -0.76 V

question 51

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Given:
Zn2+(aq) + 2e- Given: Zn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Zn(s) ; E° = -0.76 V Cr<sup>3+</sup>(aq) + 3e<sup>-</sup>  Cr(s) ; E° = -0.74 V Fe<sup>2+</sup>(aq) + 2e<sup>-</sup>  Fe(s) ; E° = -0.41 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Hg<sup>2+</sup>(aq) + 2e<sup>-</sup>  Hg(s) ; E° = 0.85 V Au<sup>+</sup>(aq) + e<sup>-</sup>  Au(s) ; E° = 1.69 V Under standard-state conditions,which of the following metals will reduce Hg<sup>2+</sup> to Hg but will not reduce Cd<sup>2+</sup> to Cd? A) Cr B) Zn C) Fe D) Sn E) AuZn(s) ; E° = -0.76 V
Cr3+(aq) + 3e- Given: Zn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Zn(s) ; E° = -0.76 V Cr<sup>3+</sup>(aq) + 3e<sup>-</sup>  Cr(s) ; E° = -0.74 V Fe<sup>2+</sup>(aq) + 2e<sup>-</sup>  Fe(s) ; E° = -0.41 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Hg<sup>2+</sup>(aq) + 2e<sup>-</sup>  Hg(s) ; E° = 0.85 V Au<sup>+</sup>(aq) + e<sup>-</sup>  Au(s) ; E° = 1.69 V Under standard-state conditions,which of the following metals will reduce Hg<sup>2+</sup> to Hg but will not reduce Cd<sup>2+</sup> to Cd? A) Cr B) Zn C) Fe D) Sn E) AuCr(s) ; E° = -0.74 V
Fe2+(aq) + 2e- Given: Zn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Zn(s) ; E° = -0.76 V Cr<sup>3+</sup>(aq) + 3e<sup>-</sup>  Cr(s) ; E° = -0.74 V Fe<sup>2+</sup>(aq) + 2e<sup>-</sup>  Fe(s) ; E° = -0.41 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Hg<sup>2+</sup>(aq) + 2e<sup>-</sup>  Hg(s) ; E° = 0.85 V Au<sup>+</sup>(aq) + e<sup>-</sup>  Au(s) ; E° = 1.69 V Under standard-state conditions,which of the following metals will reduce Hg<sup>2+</sup> to Hg but will not reduce Cd<sup>2+</sup> to Cd? A) Cr B) Zn C) Fe D) Sn E) AuFe(s) ; E° = -0.41 V
Cd2+(aq) + 2e- Given: Zn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Zn(s) ; E° = -0.76 V Cr<sup>3+</sup>(aq) + 3e<sup>-</sup>  Cr(s) ; E° = -0.74 V Fe<sup>2+</sup>(aq) + 2e<sup>-</sup>  Fe(s) ; E° = -0.41 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Hg<sup>2+</sup>(aq) + 2e<sup>-</sup>  Hg(s) ; E° = 0.85 V Au<sup>+</sup>(aq) + e<sup>-</sup>  Au(s) ; E° = 1.69 V Under standard-state conditions,which of the following metals will reduce Hg<sup>2+</sup> to Hg but will not reduce Cd<sup>2+</sup> to Cd? A) Cr B) Zn C) Fe D) Sn E) AuCd(s) ; E° = -0.40 V
Sn2+(aq) + 2e- Given: Zn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Zn(s) ; E° = -0.76 V Cr<sup>3+</sup>(aq) + 3e<sup>-</sup>  Cr(s) ; E° = -0.74 V Fe<sup>2+</sup>(aq) + 2e<sup>-</sup>  Fe(s) ; E° = -0.41 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Hg<sup>2+</sup>(aq) + 2e<sup>-</sup>  Hg(s) ; E° = 0.85 V Au<sup>+</sup>(aq) + e<sup>-</sup>  Au(s) ; E° = 1.69 V Under standard-state conditions,which of the following metals will reduce Hg<sup>2+</sup> to Hg but will not reduce Cd<sup>2+</sup> to Cd? A) Cr B) Zn C) Fe D) Sn E) AuSn(s) ; E° = -0.15 V
Hg2+(aq) + 2e- Given: Zn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Zn(s) ; E° = -0.76 V Cr<sup>3+</sup>(aq) + 3e<sup>-</sup>  Cr(s) ; E° = -0.74 V Fe<sup>2+</sup>(aq) + 2e<sup>-</sup>  Fe(s) ; E° = -0.41 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Hg<sup>2+</sup>(aq) + 2e<sup>-</sup>  Hg(s) ; E° = 0.85 V Au<sup>+</sup>(aq) + e<sup>-</sup>  Au(s) ; E° = 1.69 V Under standard-state conditions,which of the following metals will reduce Hg<sup>2+</sup> to Hg but will not reduce Cd<sup>2+</sup> to Cd? A) Cr B) Zn C) Fe D) Sn E) AuHg(s) ; E° = 0.85 V
Au+(aq) + e- Given: Zn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Zn(s) ; E° = -0.76 V Cr<sup>3+</sup>(aq) + 3e<sup>-</sup>  Cr(s) ; E° = -0.74 V Fe<sup>2+</sup>(aq) + 2e<sup>-</sup>  Fe(s) ; E° = -0.41 V Cd<sup>2+</sup>(aq) + 2e<sup>-</sup>  Cd(s) ; E° = -0.40 V Sn<sup>2+</sup>(aq) + 2e<sup>-</sup>  Sn(s) ; E° = -0.15 V Hg<sup>2+</sup>(aq) + 2e<sup>-</sup>  Hg(s) ; E° = 0.85 V Au<sup>+</sup>(aq) + e<sup>-</sup>  Au(s) ; E° = 1.69 V Under standard-state conditions,which of the following metals will reduce Hg<sup>2+</sup> to Hg but will not reduce Cd<sup>2+</sup> to Cd? A) Cr B) Zn C) Fe D) Sn E) AuAu(s) ; E° = 1.69 V
Under standard-state conditions,which of the following metals will reduce Hg2+ to Hg but will not reduce Cd2+ to Cd?

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Definitions:

Light Purity

The degree to which a light source emits a single wavelength, influencing the color's vividness or saturation.

Wavelength

The distance between identical points in the adjacent cycles of a waveform signal propagated in space or along a wire.

Saturation

A state or process in which a quantity has reached its maximum capacity or a point beyond which no additional absorption or reaction can occur.

Sensory Adaptation

A process whereby sensory receptors grow less responsive to stimuli that do not vary with time.

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