Endothermic and Exothermic Reactions-Levings

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

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

How do endothermic reactions feel to the touch?

Back

Endothermic reactions feel cold to the touch because they absorb heat.

Front

How do exothermic reactions feel to the touch?

Back

Exothermic reactions feel hot to the touch because they release heat.

Front

What is an example of an endothermic reaction?

Back

Photosynthesis is an example of an endothermic reaction, as it absorbs sunlight to convert carbon dioxide and water into glucose.

Front

What is an example of an exothermic reaction?

Back

Combustion of fuels, such as burning wood or gasoline, is an example of an exothermic reaction, as it releases heat.

Front

What instrument is used to measure temperature changes in reactions?

Back

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

Front

During chemical reactions, what happens to bonds?

Back

During chemical reactions, bonds are both broken and formed.

Front

What is the role of energy in chemical reactions?

Back

Energy is required to break bonds in reactants and is released when new bonds are formed in products.

Front

What is the overall reaction of cellular respiration?

Back

The overall reaction of cellular respiration is exothermic, as it releases energy by breaking down glucose.