Vyvážení chemické rovnice
Vyčísli následující rovnici:
\( \textrm{As}_2\textrm{S}_3+ \textrm{HCl} → \textrm{AsCl}_3 + \textrm{H}_2\textrm{S} \)
\( \textrm{As}_2\textrm{S}_3+ 6\ \textrm{HCl} → 2\ \textrm{AsCl}_3 + 3\ \textrm{H}_2\textrm{S} \)
\( \textrm{As}_2\textrm{S}_3+ 5\ \textrm{HCl} → 2\ \textrm{AsCl}_3 + 2.5\ \textrm{H}_2\textrm{S} \)
\( \textrm{As}_2\textrm{S}_3+ 8\ \textrm{HCl} → 3\ \textrm{AsCl}_3 + 4\ \textrm{H}_2\textrm{S} \)
\( \textrm{As}_2\textrm{S}_3+ 4\ \textrm{HCl} → 2\ \textrm{AsCl}_3 + 2\ \textrm{H}_2\textrm{S} \)
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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