Kemija - 2013./14. jesen - 30.

A. \(\mathrm{Na}_{2} \mathrm{O}_{2}(\mathrm{~s}) \rightleftharpoons 2 \mathrm{Na}(\mathrm{l})+\mathrm{O}_{2}(\mathrm{~g})\)

B. \(2 \mathrm{H}_{2} \mathrm{~S}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{S}_{2}(\mathrm{~g})\)

C. \(\mathrm{FeO}(\mathrm{s})+\mathrm{CO}(\mathrm{g}) \rightleftharpoons \mathrm{Fe}(\mathrm{s})+\mathrm{CO}_{2}(\mathrm{~g})\)

D. \(3 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})\)