Kemija - 2013./14. jesen - 36.

$\mathrm{B}\mathrm{a}(\mathrm{O}\mathrm{H}{)}_2\backslash mathrm\{Ba\}(\backslash mathrm\{OH\})\_\{2\}$

$\mathrm{Z}\mathrm{n}(\mathrm{O}\mathrm{H}{)}_2\backslash mathrm\{Zn\}(\backslash mathrm\{OH\})\_\{2\}$

$\mathrm{F}\mathrm{e}(\mathrm{O}\mathrm{H}{)}_2\backslash mathrm\{Fe\}(\backslash mathrm\{OH\})\_\{2\}$

$\mathrm{C}\mathrm{u}(\mathrm{O}\mathrm{H}{)}_2\backslash mathrm\{Cu\}(\backslash mathrm\{OH\})\_\{2\}$