Uzupelnic podane schematy rownan jonowych

[martyna640]

10.41
Uzupelnic podane schematy rownan jonowych, dopisujac w miejsce znakow zapytania brakujace reagenty, a nastepnie dobrac wspolczynniki stechiometryczne :
a) \(\displaystyle{ Br^{-}_{}}\) + \(\displaystyle{ BrO^{-}_{3}}\) + ? -> \(\displaystyle{ Br_{2}}\) + ?
b) \(\displaystyle{ Fe^{}_{2}}\)\(\displaystyle{ S^{}_{3}}\) + \(\displaystyle{ NO^{-}_{3}}\) + ? -> \(\displaystyle{ Fe^{3+}_{}}\) + \(\displaystyle{ SO^{2-}_{4}}\) + NO + ?
c) \(\displaystyle{ Fe^{2+}_{}}\) + \(\displaystyle{ H^{+}_{}}\) + ? -> ? + \(\displaystyle{ Mn^{2+}_{}}\) + ?
d) \(\displaystyle{ SO^{2-}_{3}}\) + \(\displaystyle{ ClO^{-}_{3}}\) -> \(\displaystyle{ Cl^{-}_{}}\) + ?
e)\(\displaystyle{ MnO^{-}_{4}}\) + \(\displaystyle{ NO^{-}_{2}}\) + \(\displaystyle{ H^{+}_{}}\) -> \(\displaystyle{ NO^{-}_{3}}\) + ?
f) \(\displaystyle{ Fe^{2}_{+}}\) + \(\displaystyle{ Cr^{}_{2}}\)\(\displaystyle{ O^{2-}_{7}}\) + ? -> \(\displaystyle{ Cr^{3-}_{}}\) + ?

[LecHu :)]

a)
\(\displaystyle{ 5Br^{-}+BrO_{3}^{-}+6H^{+}{\rightarrow}3Br_{2}+3H_{2}O}\)