Endo and Exothermic Reactions

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, usually in the form of heat.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy to its surroundings, usually in the form of heat.

Front

What is a sign that a chemical reaction has occurred?

Back

Bubbles of gas appearing is a sign that a chemical reaction has occurred.

Front

In an endothermic reaction, energy is _________.

Back

absorbed

Front

In an exothermic reaction, energy is _________.

Back

released

Front

What happens to the temperature of the surroundings in an exothermic reaction?

Back

The surrounding temperature gets warmer.

Front

What happens to the temperature of the surroundings in an endothermic reaction?

Back

The surrounding temperature gets cooler.

Front

Give an example of an exothermic reaction.

Back

Burning a match is an example of an exothermic reaction.

Front

Give an example of an endothermic reaction.

Back

Photosynthesis in plants is an example of an endothermic reaction.

Front

What is the initial temperature in the given example?

Back

The initial temperature was measured to be 20°C.