Choose the coefficients using the electronic balance method, indicate the oxidizing agent and the reducing agent

Choose the coefficients using the electronic balance method, indicate the oxidizing agent and the reducing agent: 1) CI2 + HgO = CI2O + HgCI2; 2) HCIO3 + HCL = CI2 + H2O; 3) FeS + HNO3 = Fe (NO3) 2 + S + NO2 + H2O.

1) CI2 + HgO = CI2O + HgCI2
Balanced equation:
2 CI2 + HgO = CI2O + HgCI2;
2) HCIO3 + HCL = CI2 + H2O
Balanced equation:
HClO3 + 5 HCl = 3 Cl2 + 3 H2O;
3) FeS + HNO3 = Fe (NO3) 2 + S + NO2 + H2O
Balanced equation:
FeS + 4 HNO3 = Fe (NO3) 2 + S + 2 NO2 + 2 H2O;