Redoxní reakce
Je následující reakce redoxní?
\( \textrm{Mg(OH)}_2 + \textrm {H}_2\textrm{SO}_4 → \textrm{MgSO}_4 + \textrm{H}_2\textrm{O} \)
\( \textrm{Mg}^\textrm{II}\textrm{(O}^\textrm{−II}\textrm{H}^\textrm{I})_2 + \textrm {H}^\textrm{I}_2\textrm{S}^\textrm{VI}\textrm{O}^\textrm{−II}_4 → \textrm{Mg}^\textrm{IV}\textrm{S}^\textrm{VI}\textrm{O}^\textrm{−II}_4 + \textrm{H}^\textrm{I}_2\textrm{O}^\textrm{−II} \)
\( \textrm{Mg}^\textrm{II}\textrm{(O}^\textrm{−II}\textrm{H}^\textrm{I})_2 + \textrm {H}^\textrm{I}_2\textrm{S}^\textrm{VI}\textrm{O}^\textrm{−II}_4 → \textrm{Mg}^\textrm{II}\textrm{S}^\textrm{VI}\textrm{O}^\textrm{−II}_4 + \textrm{H}^\textrm{I}_2\textrm{O}^\textrm{−I} \)
\( \textrm{Mg}^\textrm{II}\textrm{(O}^\textrm{−II}\textrm{H}^\textrm{I})_2 + \textrm {H}^\textrm{I}_2\textrm{S}^\textrm{VI}\textrm{O}^\textrm{−II}_4 → \textrm{Mg}^\textrm{II}\textrm{S}^\textrm{VI}\textrm{O}^\textrm{−II}_4 + \textrm{H}^\textrm{I}_2\textrm{O}^\textrm{−II} \)
\( \textrm{Mg}^\textrm{II}\textrm{(O}^\textrm{−II}\textrm{H}^\textrm{I})_2 + \textrm {H}^\textrm{I}_2\textrm{S}^\textrm{VI}\textrm{O}^\textrm{−II}_4 → \textrm{Mg}^\textrm{II}\textrm{S}^\textrm{IV}\textrm{O}^\textrm{−II}_4 + \textrm{H}^\textrm{I}_2\textrm{O}^\textrm{−II} \)
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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