Chemistry Archive: Questions from December 02, 2023
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3. The following setups are in a closed system, at constant P and T: a) Zn(s) | Zn^2+ (aq) || Cu^2+(aq) | Cu(s) b) Cu(s) | Cu^2+ (aq) || Zn^2+(aq) |Zn(s) a) Considering that there is only work that
a) \( \mathrm{Zn}(\mathrm{s})\left|\mathrm{Zn}^{2+}(\mathrm{aq}) \| \mathrm{Cu}^{2+}(\mathrm{aq})\right| \mathrm{Cu}(\mathrm{s}) \) b) \( \mathrm{Cu}(\mathrm{s})\left|\mathrm{Cu}^{2+}(\mathrm{aq}) \|1 answer -
4. Determine whether the oxidation reaction of ethane to ethene, with the release of hydrogen, is spontaneous or not at the temperatures of 100 K, 592 °C and 77 K. Give reasons for your answer.
4.- Determina si la reacción de oxidación de etano a eteno, con liberación de hidrógeno, es espontanea o no a las temperaturas de \( 100 \mathrm{~K}, 592^{\circ} \mathrm{C} \) y \( 77 \mathrm{~K}1 answer -
Which possible reaction occurs? \[ \begin{array}{l} \mathrm{Hg}\left(\mathrm{NO}_{3}\right)_{2(\mathrm{aq})}+\mathrm{NaCl}_{(\mathrm{aq})} \rightarrow \\ \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2(\ma1 answer -
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