Kemija - 2013./14. ljeto - 8.

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

${\mathrm{H}}_2\backslash mathrm\{H\}\_\{2\}$

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

$\mathrm{H}\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{H}\backslash mathrm\{HCOOH\}$