Welch Vaughan
01/22/2023 · Junior High School

Con los datos: \( \mathrm{Mg}^{2+} / \mathrm{Mg} ; \varepsilon^{\circ}=-2,37 \mathrm{~V} \) \( \mathrm{Cd}^{2+} / \mathrm{Cd} ; \varepsilon^{\circ}=-0,40 \mathrm{~V} \) \( \mathrm{~Pb}^{2+} / \mathrm{Pb} ; \varepsilon^{\circ}=-0,13 \mathrm{~V} \) ¿Cuáles de las siguientes proposiciones son verdaderas? a. Al colocar una placa de Mg en una solu- ción acuosa de \( \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \) la placa pierde masa. b. La pila \( \mathrm{Mg} / \mathrm{Mg}^{2+} / \mathrm{Pb}^{2+} / \mathrm{Pb} \) es la que pro- duce el mayor voltaje. c. Si sometemos una placa de Pb a una solu- ción acuosa de \( \mathrm{Cd}\left(\mathrm{NO}_{3}\right)_{2} \) no pasa nada.

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a. Verdadero b. Verdadero c. Verdadero

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