Vyvážení chemické rovnice
Vyčísli následující rovnici:
\( \textrm{NaF}+ \textrm{Al}_2\textrm{(SO}_4)_3 → \textrm{Na}_2\textrm{SO}_4 +\textrm{Na}_3\textrm{[AlF}_6] \)
\( 6\ \textrm{NaF}+ \textrm{Al}_2\textrm{(SO}_4)_3 → 2\ \textrm{Na}_2\textrm{SO}_4 + 3\ \textrm{Na}_3\textrm{[AlF}_6] \)
\( 10\ \textrm{NaF}+ \textrm{Al}_2\textrm{(SO}_4)_3 → 5\ \textrm{Na}_2\textrm{SO}_4 + \textrm{Na}_3\textrm{[AlF}_6] \)
\( 8\ \textrm{NaF}+ \textrm{Al}_2\textrm{(SO}_4)_3 → 4\ \textrm{Na}_2\textrm{SO}_4 + \textrm{Na}_3\textrm{[AlF}_6] \)
\( 12\ \textrm{NaF}+ \textrm{Al}_2\textrm{(SO}_4)_3 → 3\ \textrm{Na}_2\textrm{SO}_4 + 2\ \textrm{Na}_3\textrm{[AlF}_6] \)
Urči si oxidační čísla prvků. Uvědom si, jestli jde o redoxní reakci. Pokud ano, použij k vyčíslení křížové pravidlo, pokud ne, tak musíš reakce vyčíslit tzv. „by voko“.
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