Front

What happens to heat during an exothermic reaction?

Back

Heat is released.

Front

What happens to chemical bonds during an exothermic reaction?

Back

Chemical bonds are formed.

Front

What is an example of an exothermic reaction?

Back

Combustion of hydrocarbons, such as burning a candle.

Front

What instrument is used to measure temperature changes in reactions?

Back

Thermometer.

Front

What happens to energy in an endothermic reaction?

Back

Energy is absorbed.

Front

What happens to heat during an endothermic reaction?

Back

Heat is absorbed.

Front

What happens to chemical bonds during an endothermic reaction?

Back

Chemical bonds are broken.

Front

What is an example of an endothermic reaction?

Back

Photosynthesis in plants.

Front

How can you tell if a reaction is exothermic or endothermic?

Back

By measuring temperature changes with a thermometer.

Front

What is the main difference between exothermic and endothermic reactions?

Back

Exothermic reactions release heat, while endothermic reactions absorb heat.