Which process is an example of a chemical reaction?

Answer 1

An example of a chemical reaction is the combustion of propane (C₃H₈) in the presence of oxygen (O₂). During this reaction, propane reacts with oxygen to produce carbon dioxide (CO₂) and water (H₂O), along with the release of energy in the form of heat and light. The balanced chemical equation for this reaction is:

$${\text{C}}_3{\text{H}}_8+5{\text{O}}_2\to 3{\text{CO}}_2+4{\text{H}}_2\text{O}$$

This process involves the breaking of chemical bonds in the reactants and the formation of new bonds in the products, which is characteristic of a chemical reaction.