Endothermic/Exothermic Reactions

Front

What is 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 is an endothermic reaction?

Back

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

Front

In an exothermic reaction, what happens to the temperature of the surroundings?

Back

The temperature of the surroundings increases.

Front

In an endothermic reaction, what happens to the temperature of the surroundings?

Back

The temperature of the surroundings decreases.

Front

What is the general equation for an endothermic reaction?

Back

The general equation is: Reactants + Energy → Products.

Front

What is the general equation for an exothermic reaction?

Back

The general equation is: Reactants → Products + Energy.

Front

During an endothermic reaction, heat is ________ and chemical bonds _______.

Back

absorbed, broken.

Front

During an exothermic reaction, heat is ________ and chemical bonds _______.

Back

released, formed.

Front

What is an example of an exothermic reaction?

Back

Combustion of fuels, such as burning wood or gasoline.

Front

What is an example of an endothermic reaction?

Back

Photosynthesis, where plants absorb sunlight to convert carbon dioxide and water into glucose.