Kemija - 2014./15. ljeto - 39.

A. ${\mathrm{O}\mathrm{H}}^{-}+{\mathrm{H}}_3{\mathrm{O}}^{+}\to 2{\mathrm{H}}_2\mathrm{O}\backslash mathrm\{OH\}^\{-\}+\backslash mathrm\{H\}\_\{3\}\; \backslash mathrm\{O\}^\{+\}\; \backslash rightarrow\; 2~\; \backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{O\}$

B. $\mathrm{HCO}_{3}^{-}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{CO}_{3}^{2-}$

C. $\mathrm{CH}_{3} \mathrm{OH}+\mathrm{HBr} \rightarrow \mathrm{CH}_{3} \mathrm{Br}+\mathrm{H}_{2} \mathrm{O}$

D. ${\mathrm{C}\mathrm{H}}_3\mathrm{O}\mathrm{H}+\mathrm{H}\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{H}\to {\mathrm{H}\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{C}\mathrm{H}}_3+{\mathrm{H}}_2\mathrm{O}\backslash mathrm\{CH\}\_\{3\}\; \backslash mathrm\{OH\}+\backslash mathrm\{HCOOH\}\; \backslash rightarrow\; \backslash mathrm\{HCOOCH\}\_\{3\}+\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{O\}$