Changes in Bond Energy Quick Check 4 of 54 of 5 Items Question Use the information in the table to answer the question. Bond Bond Energy (kJ/mol) H–Cl 427 Cl–Cl 242 H–H 435 Hydrogen and chlorine gases react to produce hydrochloric acid according to the reaction. H2 + Cl2 → 2HCl How much total bond energy, in kJ/mol, is in the products of the reaction? (1 point) Responses 854 854 435 435 427 427 677

Answer 1

The total bond energy in the products of the reaction can be calculated by multiplying the number of bonds formed by their respective bond energies.

In this reaction, 2 H-Cl bonds are formed.

Bond energy of H-Cl = 427 kJ/mol

Total bond energy = (number of bonds) x (bond energy)
= 2 x 427
= 854 kJ/mol

Therefore, the correct answer is 854 kJ/mol.