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. ${\mathrm{H}\mathrm{C}\mathrm{O}}_3^{-}+{\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}_3{\mathrm{O}}^{+}+{\mathrm{C}\mathrm{O}}_3^{2-}\backslash mathrm\{HCO\}\_\{3\}^\{-\}+\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{O\}\; \backslash rightarrow\; \backslash mathrm\{H\}\_\{3\}\; \backslash mathrm\{O\}^\{+\}+\backslash mathrm\{CO\}\_\{3\}^\{2-\}$

C. ${\mathrm{C}\mathrm{H}}_3\mathrm{O}\mathrm{H}+\mathrm{H}\mathrm{B}\mathrm{r}\to {\mathrm{C}\mathrm{H}}_3\mathrm{B}\mathrm{r}+{\mathrm{H}}_2\mathrm{O}\backslash mathrm\{CH\}\_\{3\}\; \backslash mathrm\{OH\}+\backslash mathrm\{HBr\}\; \backslash rightarrow\; \backslash mathrm\{CH\}\_\{3\}\; \backslash mathrm\{Br\}+\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{O\}$

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