The amount of air that mixes with the gas stream affect the intensity of the combustion reaction of a Bunsen burner.
Correct answer choice is:
The amount of air that mixes with the gas stream.
Explanation:
A combustion reaction is a reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light. The Bunsen burner is commonly used in school laboratories to heat chemicals. Its fuel is natural gas, which is almost pure methane, CH4. The amount of air or oxygen mixed with the gas stream affects the completeness of the combustion reaction and fewer air yields an incomplete and cooler reaction.
