Endothermic and Exothermic Assessment

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

In an endothermic reaction, does the temperature of the surroundings increase or decrease?

Back

The temperature of the surroundings decreases.

Front

What happens to the temperature of a solution when ammonium nitrate dissolves in water?

Back

The temperature of the solution decreases, indicating an endothermic reaction.

Front

What is an example of an endothermic process?

Back

Melting ice is an example of an endothermic process, as it absorbs heat from the surroundings.

Front

What is an example of an exothermic process?

Back

Combustion of fuels, such as burning wood or fireworks, is an example of an exothermic process.

Front

What instrument is commonly used to measure temperature changes in reactions?

Back

A thermometer is used to detect temperature changes in endothermic or exothermic reactions.

Front

How can you tell if a reaction is endothermic based on temperature?

Back

If the temperature decreases during the reaction, it is likely an endothermic reaction.

Front

How can you tell if a reaction is exothermic based on temperature?

Back

If the temperature increases during the reaction, it is likely an exothermic reaction.

Front

What is the role of energy in chemical reactions?

Back

Energy is either absorbed or released during chemical reactions, determining whether they are endothermic or exothermic.