Kemija - 2010./11. jesen - 3.

${\mathrm{C}\mathrm{H}}_3\mathrm{O}\mathrm{H}\backslash mathrm\{CH\}\_\{3\}\; \backslash mathrm\{OH\}$

${\mathrm{N}\mathrm{H}}_3\backslash mathrm\{NH\}\_\{3\}$

${\mathrm{C}\mathrm{H}}_4\backslash mathrm\{CH\}\_\{4\}$

${\mathrm{C}\mathrm{a}\mathrm{F}}_2\backslash mathrm\{CaF\}\_\{2\}$