Kemija - 2024. ljeto, 8.

A. ${\mathrm{H}\mathrm{P}\mathrm{O}}_4^{2-}\mathrm{i}{\mathrm{H}}_2{\mathrm{P}\mathrm{O}}_4^{-}\backslash mathrm\{HPO\}\_\{4\}^\{2-\}\; ~\backslash mathrm\{i\}\; ~\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{PO\}\_\{4\}^\{-\}$

B. $\mathrm{HPO}_{4}^{2-} \mathrm{i} \mathrm{OH}^{-}$

C. ${\mathrm{H}}_2\mathrm{O}\mathrm{i}{\mathrm{H}}_2{\mathrm{P}\mathrm{O}}_4^{-}\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{O\}\; ~\backslash mathrm\{i\}\; ~\backslash mathrm\{H\}\_\{2\}\backslash mathrm\{PO\}\_\{4\}^\{-\}$

D. ${\mathrm{H}}_2\mathrm{O}\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{O\}$ i ${\mathrm{O}\mathrm{H}}^{-}\backslash mathrm\{OH\}^\{-\}$