Exothermic and endothermic reactions

Question 1

Define exothermic reactions

Answer 1

An exothermic reaction is the releasing of energy to the surrounding during a chemical reaction, increasing the temperatures of the surrounding.

Question 2

Give examples of exothermic reactions.

Answer 2

Combustion

neutralistation

Question 3

Define endothermic reactions.

Answer 3

An endothermic reaction is a reaction that takes in energy from the surroundings making the surrounding temperatures colder.

Question 4

Examples of endothermic reactions

Answer 4

photosynthesis takes in light energy

In sherbet sweets, the reaction of citric acid and sodium hydrocarbonate making your tongue feel cold.

Question 5

Define what combustion is.

Answer 5

a reaction between fuel and oxygen which releases heat to the surroundings.

Question 6

Define what thermal decomposition is.

Answer 6

Thermal decomposition is the breaking down of a compound due to heat. this is also an example of an endothermic reaction.