Kemija - 2023. ljeto, 9.

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

${\mathrm{K}}_2{\mathrm{S}\mathrm{O}}_4\backslash mathrm\{K\}\_\{2\}\; \backslash mathrm\{SO\}\_\{4\}$

${\mathrm{L}\mathrm{i}}_2{\mathrm{C}\mathrm{O}}_3\backslash mathrm\{Li\}\_\{2\}\; \backslash mathrm\{CO\}\_\{3\}$

${\mathrm{N}\mathrm{H}}_4{\mathrm{N}\mathrm{O}}_3\backslash mathrm\{NH\}\_\{4\}\; \backslash mathrm\{NO\}\_\{3\}$