Kemija - 2023. jesen, 1.

A. $\mathrm{K}, \mathrm{Ca}, \mathrm{As}, \mathrm{Br}$

B. $\mathrm{B}\mathrm{r},\mathrm{A}\mathrm{s},\mathrm{C}\mathrm{a},\mathrm{K}\backslash mathrm\{Br\},\; \backslash mathrm\{As\},\; \backslash mathrm\{Ca\},\; \backslash mathrm\{K\}$

C. $\mathrm{A}\mathrm{s},\mathrm{K},\mathrm{B}\mathrm{r},\mathrm{C}\mathrm{a}\backslash mathrm\{As\},\; \backslash mathrm\{K\},\; \backslash mathrm\{Br\},\; \backslash mathrm\{Ca\}$

D. $\mathrm{K},\mathrm{B}\mathrm{r},\mathrm{C}\mathrm{a},\mathrm{A}\mathrm{s}\backslash mathrm\{K\},\; \backslash mathrm\{Br\},\; \backslash mathrm\{Ca\},\; \backslash mathrm\{As\}$