Kemija - 2022. jesen, 20.

A. ${\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_3(\mathrm{a}\mathrm{q})+2\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}(\mathrm{s})\to 2\mathrm{H}\mathrm{C}\mathrm{l}(\mathrm{g})+{\mathrm{N}\mathrm{a}}_2{\mathrm{S}\mathrm{O}}_3(\mathrm{a}\mathrm{q})\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{SO\}\_\{3\}(\backslash mathrm\{aq\})+2\; ~\backslash mathrm\{NaCl\}(\backslash mathrm\{s\})\; \backslash rightarrow\; 2\; ~\backslash mathrm\{HCl\}(\backslash mathrm\{g\})+\backslash mathrm\{Na\}\_\{2\}\; \backslash mathrm\{SO\}\_\{3\}(\backslash mathrm\{aq\})$

B. ${\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_3(\mathrm{a}\mathrm{q})+2\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}(\mathrm{s})\to {\mathrm{H}}_2(\mathrm{g})+{\mathrm{C}\mathrm{l}}_2(\mathrm{g})+{\mathrm{N}\mathrm{a}}_2{\mathrm{S}\mathrm{O}}_3(\mathrm{s})\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{SO\}\_\{3\}(\backslash mathrm\{aq\})+2\; ~\backslash mathrm\{NaCl\}(\backslash mathrm\{s\})\; \backslash rightarrow\; \backslash mathrm\{H\}\_\{2\}(\backslash mathrm\{g\})+\backslash mathrm\{Cl\}\_\{2\}(\backslash mathrm\{g\})+\backslash mathrm\{Na\}\_\{2\}\; \backslash mathrm\{SO\}\_\{3\}(\backslash mathrm\{s\})$

C. ${\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_4(\mathrm{a}\mathrm{q})+2\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}(\mathrm{s})\to 2\mathrm{H}\mathrm{C}\mathrm{l}(\mathrm{g})+{\mathrm{N}\mathrm{a}}_2{\mathrm{S}\mathrm{O}}_4(\mathrm{a}\mathrm{q})\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{SO\}\_\{4\}(\backslash mathrm\{aq\})+2\; ~\backslash mathrm\{NaCl\}(\backslash mathrm\{s\})\; \backslash rightarrow\; 2\; ~\backslash mathrm\{HCl\}(\backslash mathrm\{g\})+\backslash mathrm\{Na\}\_\{2\}\; \backslash mathrm\{SO\}\_\{4\}(\backslash mathrm\{aq\})$

D. ${\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_4(\mathrm{a}\mathrm{q})+2\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}(\mathrm{s})\to {\mathrm{H}}_2(\mathrm{g})+{\mathrm{C}\mathrm{l}}_2(\mathrm{g})+{\mathrm{N}\mathrm{a}}_2{\mathrm{S}\mathrm{O}}_4(\mathrm{s})\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{SO\}\_\{4\}(\backslash mathrm\{aq\})+2\; ~\backslash mathrm\{NaCl\}(\backslash mathrm\{s\})\; \backslash rightarrow\; \backslash mathrm\{H\}\_\{2\}(\backslash mathrm\{g\})+\backslash mathrm\{Cl\}\_\{2\}(\backslash mathrm\{g\})+\backslash mathrm\{Na\}\_\{2\}\; \backslash mathrm\{SO\}\_\{4\}(\backslash mathrm\{s\})$