Kemija - 2020. jesen, 7.

A. $2\mathrm{A}\mathrm{g}\mathrm{C}\mathrm{l}(\mathrm{s})\to 2\mathrm{A}\mathrm{g}(\mathrm{s})+{\mathrm{C}\mathrm{l}}_2(\mathrm{g})2\; \backslash mathrm\{AgCl\}(\backslash mathrm\{s\})\; \backslash rightarrow\; 2\; \backslash mathrm\{Ag\}(\backslash mathrm\{s\})+\backslash mathrm\{Cl\}\_\{2\}(\backslash mathrm\{~g\})$

B. $4\mathrm{C}\mathrm{r}(\mathrm{s})+3{\mathrm{O}}_2(\mathrm{g})\to 2{\mathrm{C}\mathrm{r}}_2{\mathrm{O}}_3(\mathrm{s})4\; \backslash mathrm\{~Cr\}(\backslash mathrm\{s\})+3\; \backslash mathrm\{~O\}\_\{2\}(\backslash mathrm\{g\})\; \backslash rightarrow\; 2\; \backslash mathrm\{~Cr\}\_\{2\}\; \backslash mathrm\{O\}\_\{3\}(\backslash mathrm\{s\})$

C. ${\mathrm{C}\mathrm{u}\mathrm{S}\mathrm{O}}_4\cdot 5{\mathrm{H}}_2\mathrm{O}(\mathrm{s})\to 5{\mathrm{H}}_2\mathrm{O}(\mathrm{\ell })+{\mathrm{C}\mathrm{u}\mathrm{S}\mathrm{O}}_4(\mathrm{s})\backslash mathrm\{CuSO\}\_\{4\}\; \backslash cdot\; 5\; \backslash mathrm\{~H\}\_\{2\}\; \backslash mathrm\{O\}(\backslash mathrm\{s\})\; \backslash rightarrow\; 5\; \backslash mathrm\{~H\}\_\{2\}\; \backslash mathrm\{O\}(\backslash ell)+\backslash mathrm\{CuSO\}\_\{4\}(\backslash mathrm\{s\})$

D. $2{\mathrm{C}}_4{\mathrm{H}}_{10}(\mathrm{g})+13{\mathrm{O}}_2(\mathrm{g})\to 8{\mathrm{C}\mathrm{O}}_2(\mathrm{g})+10{\mathrm{H}}_2\mathrm{O}(\mathrm{\ell })2\; \backslash mathrm\{~C\}\_\{4\}\; \backslash mathrm\{H\}\_\{10\}(\backslash mathrm\{g\})+13\; \backslash mathrm\{~O\}\_\{2\}(\backslash mathrm\{g\})\; \backslash rightarrow\; 8\; \backslash mathrm\{~CO\}\_\{2\}(\backslash mathrm\{g\})+10\; \backslash mathrm\{~H\}\_\{2\}\; \backslash mathrm\{O\}(\backslash ell)$