Which reaction is endothermic? (1 point) Responses S + O2 → SO2 S + O 2 → SO 2 2CO + O2 → 2CO2 2CO + O2 → 2CO 2 N2 + O2 → 2NO N 2 + O 2 → 2NO C + O2 → CO2

The reaction that is endothermic is: C + O2 → CO2.