Redoxní reakce
Je následující reakce redoxní?
\( \textrm{Fe(OH)}_3 → \textrm{Fe}_2\textrm{O}_3+ \textrm{H}_2\textrm{O} \)
\( \textrm{Fe}^{\textrm{III}}\textrm{(O}^{\textrm{−I}}\textrm{H}^{\textrm{I}})_3 → \textrm{Fe}_2^\textrm{III}\textrm{O}_3^\textrm{−II}+ \textrm{H}_2^\textrm{I}\textrm{O}^\textrm{−II} \)
\( \textrm{Fe}^{\textrm{III}}\textrm{(O}^{\textrm{−II}}\textrm{H}^{\textrm{I}})_3 → \textrm{Fe}_2^\textrm{III}\textrm{O}_3^\textrm{−II}+ \textrm{H}_2^\textrm{I}\textrm{O}^\textrm{−II} \)
\( \textrm{Fe}^{\textrm{III}}\textrm{(O}^{\textrm{−II}}\textrm{H}^{\textrm{I}})_3 → \textrm{Fe}_2^\textrm{II}\textrm{O}_3^\textrm{−II}+ \textrm{H}_2^\textrm{I}\textrm{O}^\textrm{−II} \)
\( \textrm{Fe}^{\textrm{II}}\textrm{(O}^{\textrm{−II}}\textrm{H}^{\textrm{I}})_3 → \textrm{Fe}_2^\textrm{III}\textrm{O}_3^\textrm{−II}+ \textrm{H}_2^\textrm{I}\textrm{O}^\textrm{−II} \)
Urči si oxidační čísla látek v reakci. Pokud se číslo zvyšuje, tak se rovná o oxidaci, pokud snižuje, tak je to redukce.
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