Final answer:
The term indicating a chemical reaction is a combustion, which involves a substance reacting with oxygen to produce heat and new compounds, different from physical processes like deposition, sublimation, or vaporization.
Step-by-step explanation:
The term that represents a chemical reaction is combustion. Combustion is a chemical process in which a substance reacts with oxygen to give off heat and form new products. This reaction is commonly associated with the burning of fuels such as in a car engine or a lit candle.
For example, combustion of methane (CH₄) in the presence of oxygen (O₂) produces carbon dioxide (CO₂) and water (H₂O) with the chemical equation:
CH₄ + 2 O₂ → CO₂ + 2 H₂O
The other terms mentioned - deposition, sublimation, and vaporization - describe physical changes rather than chemical.