Kemija - 2017. ljeto, 40.

$\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}\backslash mathrm\{NaCl\}$

${\left({\mathrm{N}\mathrm{H}}_4\right)}_2{\mathrm{S}\mathrm{O}}_4\backslash left(\backslash mathrm\{NH\}\_\{4\}\backslash right)\_\{2\}\; \backslash mathrm\{SO\}\_\{4\}$

${\mathrm{M}\mathrm{g}\mathrm{C}\mathrm{O}}_3\backslash mathrm\{MgCO\}\_\{3\}$

${\mathrm{K}\mathrm{N}\mathrm{O}}_3\backslash mathrm\{KNO\}\_\{3\}$