Kemija - 2017. jesen, 40.

A. $\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}(\mathrm{a}\mathrm{q}),\mathrm{C}\mathrm{a}(\mathrm{O}\mathrm{H}{)}_2(\mathrm{a}\mathrm{q}),\mathrm{K}\mathrm{O}\mathrm{H}(\mathrm{a}\mathrm{q})\backslash mathrm\{NaCl\}(\backslash mathrm\{aq\}),\; ~\backslash mathrm\{Ca\}(\backslash mathrm\{OH\})\_\{2\}(\backslash mathrm\{aq\}),\; ~\backslash mathrm\{KOH\}(\backslash mathrm\{aq\})$

B. $\mathrm{M}\mathrm{g}(\mathrm{O}\mathrm{H}{)}_2(\mathrm{s}),{\mathrm{N}\mathrm{H}}_4\mathrm{C}\mathrm{l}(\mathrm{a}\mathrm{q}),\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}(\mathrm{a}\mathrm{q})\backslash mathrm\{Mg\}(\backslash mathrm\{OH\})\_\{2\}(\backslash mathrm\{s\}),\; ~\backslash mathrm\{NH\}\_\{4\}\; \backslash mathrm\{Cl\}(\backslash mathrm\{aq\}),\; ~\backslash mathrm\{NaOH\}(\backslash mathrm\{aq\})$

C. ${\mathrm{N}\mathrm{H}}_4\mathrm{O}\mathrm{H}(\mathrm{a}\mathrm{q}),\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}(\mathrm{a}\mathrm{q}),\mathrm{C}\mathrm{a}(\mathrm{O}\mathrm{H}{)}_2(\mathrm{a}\mathrm{q})\backslash mathrm\{NH\}\_\{4\}\; \backslash mathrm\{OH\}(\backslash mathrm\{aq\}),\; ~\backslash mathrm\{NaOH\}(\backslash mathrm\{aq\}),\; ~\backslash mathrm\{Ca\}(\backslash mathrm\{OH\})\_\{2\}(\backslash mathrm\{aq\})$

D. $\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}(\mathrm{s}),\mathrm{M}\mathrm{g}(\mathrm{O}\mathrm{H}{)}_2(\mathrm{s}),\mathrm{K}\mathrm{O}\mathrm{H}(\mathrm{a}\mathrm{q})\backslash mathrm\{NaOH\}(\backslash mathrm\{s\}),\; ~\backslash mathrm\{Mg\}(\backslash mathrm\{OH\})\_\{2\}(\backslash mathrm\{s\}),\; ~\backslash mathrm\{KOH\}(\backslash mathrm\{aq\})$