33. The reactions are expressed in patterns
H2SO3 + HClO3 → H2SO4 + HCl
FeSO4 + K2Cr2O7 + H2SO4 → Fe2 (SO4) 3 + Cr2 (SO4) 3 + K2SO4 + H2O
Make a electronic equation. Arrange the the coefficients in the equations of reactions. For each reaction, specify the, what substance is an oxidant, what - a reducing agent; what substance is oxidized, what - is restored

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)