Endothermic/Exothermic Review

Front

What is the definition of an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings, resulting in a decrease in temperature.

Front

What is the definition of an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings, resulting in an increase in temperature.

Front

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

Back

A thermometer.

Front

During an exothermic reaction, what happens to the energy?

Back

Energy is released.

Front

What happens to chemical bonds during an exothermic reaction?

Back

Chemical bonds are formed.

Front

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

Back

The temperature of the surroundings decreases.

Front

Give an example of an endothermic reaction that occurs in everyday life.

Back

Dissolving ammonium nitrate in water.

Front

What is a common characteristic of endothermic reactions in terms of temperature?

Back

They usually feel cold to the touch.

Front

What is a common characteristic of exothermic reactions in terms of temperature?

Back

They usually feel warm or hot to the touch.

Front

What type of reaction occurs when a candle burns?

Back

An exothermic reaction.