Endothermic vs exothermic reactions

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

In an endothermic reaction, energy is absorbed from the surroundings.

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or fireworks.

Front

What is the main characteristic of an endothermic reaction?

Back

The main characteristic of an endothermic reaction is that it absorbs heat, resulting in a temperature decrease in the surroundings.

Front

Is melting ice an endothermic or exothermic process?

Back

Melting ice is an endothermic process because it absorbs heat from the environment.

Front

What is the effect of an exothermic reaction on the temperature of the surroundings?

Back

An exothermic reaction increases the temperature of the surroundings.

Front

What type of reaction occurs during photosynthesis?

Back

Photosynthesis is an endothermic reaction because it absorbs sunlight energy.

Front

How can you identify an exothermic reaction in a laboratory setting?

Back

You can identify an exothermic reaction by feeling a temperature increase in the reaction mixture or surroundings.

Front

What is the law of conservation of energy in relation to chemical reactions?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another during chemical reactions.

Front

What is a common misconception about endothermic reactions?

Back

A common misconception is that endothermic reactions release energy; in fact, they absorb energy.