Dear Student, 1. C+2S ----> CS2. Already Balanced reaction, type : Addition reaction 2. H2+ I2 ----> 2HI Already Balanced reaction, type : Addition reaction. 3. C+H2 ------> CO+H2 –HEAT. Already Balanced reaction, type : Combustion reaction. 4. 2FeSO4 -----> Fe2O3+SO2+SO3Already Balanced reaction, type : Decomposition reaction. 5. Zn+2AgNO3 ----->Zn(NO3)2+2Ag Already Balanced reaction, type : Displacement reaction. Regards