Changes in Bond Energy Quick Check 5 of 55 of 5 Items Question Use the information in the table to answer the question. Reaction Bonds Present Energy of Bonds Broken and Formed (kJ/mol) C + O2 → CO2 O=O 2 C=O 498 1478 N2 + O2 → 2NO N≡N O=O 2 N=O 946 498 1214 S + O2 → SO2 O=O 2 S=O 498 1044 2CO + O2 → 2CO2 2 C≡O O=O 4 C=O 2148 498 2956 Which reaction is endothermic? (1 point) Responses 2CO + O2 → 2CO2 2CO + O 2 → 2CO 2 N2 + O2 → 2NO N 2 + O 2 → 2NO C + O2 → CO2 C + O 2 → CO 2 S + O2 → SO2 S + O 2 → SO 2
