Kemija - 2024./25. jesen - 34.

A. $\mathrm{A}\mathrm{g}(\mathrm{s})+{\mathrm{A}\mathrm{u}}^{+}(\mathrm{a}\mathrm{q})\to {\mathrm{A}\mathrm{g}}^{+}(\mathrm{a}\mathrm{q})+\mathrm{A}\mathrm{u}(\mathrm{s})\backslash mathrm\{Ag\}(\backslash mathrm\{s\})+\backslash mathrm\{Au\}^\{+\}(\backslash mathrm\{aq\})\; \backslash rightarrow\; \backslash mathrm\{Ag\}^\{+\}(\backslash mathrm\{aq\})+\backslash mathrm\{Au\}(\backslash mathrm\{s\})$

B. $\mathrm{Z}\mathrm{n}(\mathrm{s})+{\mathrm{C}\mathrm{a}}^{2+}(\mathrm{a}\mathrm{q})\to {\mathrm{Z}\mathrm{n}}^{2+}(\mathrm{a}\mathrm{q})+\mathrm{C}\mathrm{a}(\mathrm{s})\backslash mathrm\{Zn\}(\backslash mathrm\{s\})+\backslash mathrm\{Ca\}^\{2+\}(\backslash mathrm\{aq\})\; \backslash rightarrow\; \backslash mathrm\{Zn\}^\{2+\}(\backslash mathrm\{aq\})+\backslash mathrm\{Ca\}(\backslash mathrm\{s\})$

C. $\mathrm{F}\mathrm{e}(\mathrm{s})+{\mathrm{M}\mathrm{n}}^{2+}(\mathrm{a}\mathrm{q})\to {\mathrm{F}\mathrm{e}}^{2+}(\mathrm{a}\mathrm{q})+\mathrm{M}\mathrm{n}(\mathrm{s})\backslash mathrm\{Fe\}(\backslash mathrm\{s\})+\backslash mathrm\{Mn\}^\{2+\}(\backslash mathrm\{aq\})\; \backslash rightarrow\; \backslash mathrm\{Fe\}^\{2+\}(\backslash mathrm\{aq\})+\backslash mathrm\{Mn\}(\backslash mathrm\{s\})$

D. $\mathrm{A}\mathrm{l}(\mathrm{s})+3{\mathrm{N}\mathrm{a}}^{+}(\mathrm{a}\mathrm{q})\to {\mathrm{A}\mathrm{l}}^{3+}(\mathrm{a}\mathrm{q})+3\mathrm{N}\mathrm{a}(\mathrm{s})\backslash mathrm\{Al\}(\backslash mathrm\{s\})+3\; \backslash mathrm\{~Na\}^\{+\}(\backslash mathrm\{aq\})\; \backslash rightarrow\; \backslash mathrm\{Al\}^\{3+\}(\backslash mathrm\{aq\})+3\; \backslash mathrm\{~Na\}(\backslash mathrm\{s\})$