Answer
Food being burnt represents chemical change.
Work Step by Step
When you smell food being burned, the chemical composition of the food changes and an odor is produced thus food being burnt represents a chemical change.
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.