Kemija - 2015./16. ljeto - 17.

A. $2\mathrm{N}\mathrm{a}(\mathrm{s})+{\mathrm{O}}_2(\mathrm{g})\to {\mathrm{N}\mathrm{a}}_2{\mathrm{O}}_2(\mathrm{s})2\; ~\backslash mathrm\{Na\}(\backslash mathrm\{s\})+\backslash mathrm\{O\}\_\{2\}(\backslash mathrm\{g\})\; \backslash rightarrow\; \backslash mathrm\{Na\}\_\{2\}\; \backslash mathrm\{O\}\_\{2\}(\backslash mathrm\{s\})$

B. ${\mathrm{C}\mathrm{a}\mathrm{C}\mathrm{O}}_3(\mathrm{s})\stackrel{\text{ zagrijavanje }}{\to }\mathrm{C}\mathrm{a}\mathrm{O}(\mathrm{s})+{\mathrm{C}\mathrm{O}}_2(\mathrm{g})\backslash mathrm\{CaCO\}\_\{3\}(\backslash mathrm\{s\})\; \backslash xrightarrow\{\backslash text\; \{\; zagrijavanje\; \}\}\; \backslash mathrm\{CaO\}(\backslash mathrm\{s\})+\backslash mathrm\{CO\}\_\{2\}(\backslash mathrm\{g\})$

C. $2\mathrm{K}(\mathrm{s})+{\mathrm{H}}_2(\mathrm{g})\to 2\mathrm{K}\mathrm{H}(\mathrm{s})2\; \backslash mathrm\{~K\}(\backslash mathrm\{s\})+\backslash mathrm\{H\}\_\{2\}(\backslash mathrm\{g\})\; \backslash rightarrow\; 2\; \backslash mathrm\{~KH\}(\backslash mathrm\{s\})$

D. ${\mathrm{C}\mathrm{O}}_2(\mathrm{g})+\mathrm{C}\mathrm{a}\mathrm{O}(\mathrm{s})\to {\mathrm{C}\mathrm{a}\mathrm{C}\mathrm{O}}_3(\mathrm{s})\backslash mathrm\{CO\}\_\{2\}(\backslash mathrm\{g\})+\backslash mathrm\{CaO\}(\backslash mathrm\{s\})\; \backslash rightarrow\; \backslash mathrm\{CaCO\}\_\{3\}(\backslash mathrm\{s\})$