The balanced chemical equation for this reaction is:

C2H3OH + K2Cr2O7 + H2SO4 -> Cr2$SO4$3 + CH3COOH + K2SO4 + H2O + Cr2O3

This reaction involves the oxidation of ethanol $C2H3OH$ by potassium dichromate $K2Cr2O7$ in the presence of sulfuric acid $H2SO4$.