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. ${\mathrm{H}\mathrm{N}\mathrm{O}}_3+{\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}_3{\mathrm{O}}^{+}+{\mathrm{N}\mathrm{O}}_3^{-}\backslash mathrm\{HNO\}\_\{3\}+\backslash mathrm\{H\}\_\{2\}\backslash mathrm\{O\}\; \backslash rightarrow\; \backslash mathrm\{H\}\_\{3\}\backslash mathrm\{O\}^\{+\}+\backslash mathrm\{NO\}\_\{3\}^\{-\}$

C. $\mathrm{Z}\mathrm{n}+\mathrm{H}\mathrm{C}\mathrm{l}\to {\mathrm{Z}\mathrm{n}\mathrm{C}\mathrm{l}}_2+{\mathrm{H}}_2\backslash mathrm\{Zn\}+\backslash mathrm\{HCl\}\; \backslash rightarrow\; \backslash mathrm\{ZnCl\}\_\{2\}+\backslash mathrm\{H\}\_\{2\}$

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