Solution of task 229 of Chemistry Book Shimanovich 2003

Solution of task 229 of Chemistry Book Shimanovich 2003

229. Reactions are expressed by schemes:
H2S + Cl2 + H2O-H2SO4 + HCl
K2Cr2O7 + H2S + H2SO4 - S + Cr2 (SO4) 3 + K2SO4 + H2O
Compose electronic equations. Arrange the coefficients in the reaction equations. For each reaction, indicate which substance is an oxidizer, which is a reducing agent; What substance is oxidized, what is recovered.