Answer:
The answer to your question is Yes, it is a chemical reaction
Explanation:
A chemical reaction is a process that involves a rearrangement of the atoms and molecules of the reactants to form products.
In your question, sugar and oxygen are transformed into carbon dioxide and water that process is the definition of a chemical reaction.
Reaction
C₆H₁₂O₆ + 9O₂ ⇒ 6CO₂ + 6H₂O
