EP 6 Sample Problem Solution

C +H2SO4--> CO2 +SO2 + H2O


C=0
H=+1 so +2 O4=-8, so S is +6
C=+4 because O2=-4
S=+4 because O2=-4
H2=+2 O=-2

C goes from C=0-->+4 loses electrons Oxidized LEO/reducing agent
S goes from S=+6-->+4 gains electrons reduced GER/oxidizing agent