Kemija - 2014./15. ljeto - 5.

$\mathrm{H}\mathrm{g}\backslash mathrm\{Hg\}$

${\mathrm{C}\mathrm{C}\mathrm{l}}_4\backslash mathrm\{CCl\}\_\{4\}$

${\mathrm{C}}_6{\mathrm{H}}_6\backslash mathrm\{C\}\_\{6\}\; \backslash mathrm\{H\}\_\{6\}$

${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{O}\mathrm{H}\backslash mathrm\{C\}\_\{2\}\; \backslash mathrm\{H\}\_\{5\}\; \backslash mathrm\{OH\}$