answr
Login
Join Now
chemistry



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


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.

Answered By

toppr

Upvote(0)
How satisfied are you with the answer?
This will help us to improve better

Practice important Questions

IGCSE 2018 Class 10 Chemistry Paper 1

40 Qs

Related Questions to study

In which case, the direction of the flow of smoke will be towards the candle first and then upwards ?

View Answer

In which of the following, heat energy will be evolved?

View Answer

Types of combustion are:

View Answer

Fire is extinguished by:

View Answer

Wrap a thin paper strip tightly around an iron rod. Try to burn the paper with candle while rotating the iron rod continuously. Does it burn ?

View Answer

Digestion of food in our body is an example of ______ reaction.

View Answer

On strong heating, sulphur burns in the air with blue flame and gives out:

View Answer

Write short notes on: Cetane number

View Answer

Pick out the wrong statement.

View Answer

The reaction of burning of carbon in oxygen is respected by the equation:



When g of solid carbon is burnt in g of oxygen gas, g of carbon dioxide is produced. The mass of carbon dioxide gas formed on burning of g of carbon in g of oxygen would be (Note: atomic mass of

View Answer
View Answer
View Answer
View Answer
View Answer
View Answer
View Answer
View Answer
View Answer
View Answer
View Answer

VIEW MORE

Create custom Assignments
Customize assignments and download PDF’s
Make now