Answer
See the answer below.
Work Step by Step
Bonds broken: 2 C-H, 1 O=O
Bonds formed: 2 C-O, 2 H-O
$\Delta H=(2×413+498)-(2×358+2×463)=-318\ kJ/mol$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.