The combustion of methane in a Bunsen burner is an example of a reaction

Combustion reaction

Explanation:

Combustion reaction is a type of chemical reaction which takes place in the presence of oxygen that is it involves burning.

In this reaction, the substance which burns is known as a fuel and yields carbon dioxide, water and heat energy.

The methane gas is present as a component of natural gas and when burned over a bunsen burner reacts with oxygen and yields carbon dioxide and water.

The chemical reaction for the combustion of methane is:

 CH₄[g] + 2 O₂[g] -> CO₂[g] + 2 H₂O[g] + energy

Thus, Combustion reaction is the correct answer.

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the answer is na (sodium)