Question

The diagram shows a match.
By striking the match, a chemical reaction takes place.

Which statement describes the chemical reaction?

• A. Endothermic because energy is given out as the match burns
• B. Endothermic because energy is used to strike the match
• C. Exothermic because energy is given out as the match burns
• D. Exothermic because energy is used to strike the match

Answer 1

Answer: (C)

Exothermic because energy is given out as the match burns

An exothermic reaction is a chemical reaction that releases energy through light or heat.

When you strike the match on the matchbox, the friction generates more heat energy than can be taken in by the surrounding particles. This results in the flame.

The match goes out when the wind takes away the heat energy and there isn't any more friction to keep the reaction going. When you use a match to light something else, this results in a combustion reaction.