Exothermic and Endothermic reactions James

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings.

Front

What happens to energy in an endothermic reaction?

Back

Energy is absorbed from the surroundings.

Front

What happens to energy in an exothermic reaction?

Back

Energy is released into the surroundings.

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

Give an example of an endothermic reaction.

Back

Dissolving ammonium nitrate in water is an example of an endothermic reaction.

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, like burning wood or gasoline, is an example of an exothermic reaction.

Front

What is the term for a reaction that transfers heat energy to the surroundings?

Back

Exothermic reaction.

Front

What is the term for a reaction that absorbs heat energy?

Back

Endothermic reaction.