Kemija - 2019. jesen, 10.

A. otopina $\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}\backslash mathrm\{NaCl\}$

B. otopina ${\mathrm{N}\mathrm{a}\mathrm{N}\mathrm{O}}_3\backslash mathrm\{NaNO\}\_\{3\}$

C. otopina $\mathrm{C}\mathrm{u}{\left({\mathrm{N}\mathrm{O}}_3\right)}_2\backslash mathrm\{Cu\}\backslash left(\backslash mathrm\{NO\}\_\{3\}\backslash right)\_\{2\}$

D. otopina ${\mathrm{C}\mathrm{u}\mathrm{S}\mathrm{O}}_4\backslash mathrm\{CuSO\}\_\{4\}$