Kemija - 2014./15. jesen - 30.

$\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}(\mathrm{s})\backslash mathrm\{NaCl\}(\backslash mathrm\{s\})$

${\mathrm{C}\mathrm{a}\mathrm{C}\mathrm{O}}_3(\mathrm{s})\backslash mathrm\{CaCO\}\_\{3\}(\backslash mathrm\{s\})$

${\mathrm{P}}_4{\mathrm{O}}_{10}(\mathrm{s})\backslash mathrm\{P\}\_\{4\}\; \backslash mathrm\{O\}\_\{10\}(\backslash mathrm\{s\})$

${\mathrm{N}\mathrm{H}}_4\mathrm{C}\mathrm{l}(\mathrm{s})\backslash mathrm\{NH\}\_\{4\}\; \backslash mathrm\{Cl\}(\backslash mathrm\{s\})$