Refer to the following half-reactions and standard potentials. E° (V) Nae Na -2.71 Mg2+ + 2e → Mg -2.37 Cd²+ + 2e → Cd -0.40 Ag+ + e → Ag +0.80 1. Which is the weakest reducing agent among those shown above? [Select ] II. Which of the following reactions will occur spontaneously? [Select] [Select] 2Ag + Mg → 2Ag + Mg²+ Mg + 2Na* → Mg²+ + 2Na Ag + Na →→ Ag* + Na Mg²+ + Cd → Mg + Cd²+ < <

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Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.140QP
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Refer to the following half-reactions and standard potentials.
E° (V)
Nae Na
-2.71
Mg2+ + 2e → Mg -2.37
Cd²+ + 2e → Cd
-0.40
Ag+ + e → Ag
+0.80
1. Which is the weakest reducing agent among those shown above? [Select ]
II. Which of the following reactions will occur spontaneously?
[Select]
[Select]
2Ag + Mg → 2Ag + Mg²+
Mg + 2Na* → Mg²+ + 2Na
Ag + Na →→ Ag* + Na
Mg²+ + Cd → Mg + Cd²+
<
<
Transcribed Image Text:Refer to the following half-reactions and standard potentials. E° (V) Nae Na -2.71 Mg2+ + 2e → Mg -2.37 Cd²+ + 2e → Cd -0.40 Ag+ + e → Ag +0.80 1. Which is the weakest reducing agent among those shown above? [Select ] II. Which of the following reactions will occur spontaneously? [Select] [Select] 2Ag + Mg → 2Ag + Mg²+ Mg + 2Na* → Mg²+ + 2Na Ag + Na →→ Ag* + Na Mg²+ + Cd → Mg + Cd²+ < <
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