Kemija - 2023. jesen, 34.

A. ${\mathrm{M}\mathrm{g}}^{2+}\backslash mathrm\{Mg\}^\{2+\}$

B. ${\mathrm{A}\mathrm{g}}^{+}\backslash mathrm\{Ag\}^\{+\}$

C. $\mathrm{M}\mathrm{n}\backslash mathrm\{Mn\}$

D. $\mathrm{C}\mathrm{u}\backslash mathrm\{Cu\}$