Kemija - 2009./10. ljeto - 36.

A. $2\mathrm{C}\mathrm{a}+{\mathrm{O}}_2\to 2\mathrm{C}\mathrm{a}\mathrm{O}2\; \backslash mathrm\{~Ca\}+\backslash mathrm\{O\}\_\{2\}\; \backslash rightarrow\; 2\; \backslash mathrm\{~CaO\}$

B. $\mathrm{HNO}_{3}+\mathrm{H}_{2}\mathrm{O} \rightarrow \mathrm{H}_{3}\mathrm{O}^{+}+\mathrm{NO}_{3}^{-}$

C. $\mathrm{Zn}+\mathrm{HCl} \rightarrow \mathrm{ZnCl}_{2}+\mathrm{H}_{2}$

D. ${\mathrm{C}}_3{\mathrm{H}}_7\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{H}+\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}\to {\mathrm{C}}_3{\mathrm{H}}_7\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{N}\mathrm{a}+{\mathrm{H}}_2\mathrm{O}\backslash mathrm\{C\}\_\{3\}\backslash mathrm\{H\}\_\{7\}\backslash mathrm\{COOH\}+\backslash mathrm\{NaOH\}\; \backslash rightarrow\; \backslash mathrm\{C\}\_\{3\}\backslash mathrm\{H\}\_\{7\}\backslash mathrm\{COONa\}+\backslash mathrm\{H\}\_\{2\}\backslash mathrm\{O\}$