Kemija - 2009./10. ljeto - 5.

$\mathrm{H}\mathrm{F},{\mathrm{N}\mathrm{a}}_2\mathrm{O},{\mathrm{C}\mathrm{O}}_2,{\mathrm{H}}_2\mathrm{S}\backslash mathrm\{HF\},\; \backslash mathrm\{Na\}\_\{2\}\; \backslash mathrm\{O\},\; \backslash mathrm\{CO\}\_\{2\},\; \backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{~S\}$

${\mathrm{P}\mathrm{H}}_3,{\mathrm{C}\mathrm{C}\mathrm{l}}_4,\mathrm{H}\mathrm{C}\mathrm{H}\mathrm{O},{\mathrm{H}}_2\mathrm{S}\backslash mathrm\{PH\}\_\{3\},\; \backslash mathrm\{CCl\}\_\{4\},\; \backslash mathrm\{HCHO\},\; \backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{~S\}$

$\mathrm{M}\mathrm{g}\mathrm{O},{\mathrm{H}}_2{\mathrm{O}}_2,{\mathrm{C}}_2{\mathrm{H}}_2,{\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_3\backslash mathrm\{MgO\},\; \backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{O\}\_\{2\},\; \backslash mathrm\{C\}\_\{2\}\; \backslash mathrm\{H\}\_\{2\},\; \backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{SO\}\_\{3\}$

$\mathrm{C}\mathrm{O},{\mathrm{N}\mathrm{O}}_2,{\mathrm{C}\mathrm{S}}_2,{\mathrm{K}}_2{\mathrm{O}}_2\backslash mathrm\{CO\},\; \backslash mathrm\{NO\}\_\{2\},\; \backslash mathrm\{CS\}\_\{2\},\; \backslash mathrm\{~K\}\_\{2\}\; \backslash mathrm\{O\}\_\{2\}$