Types of Chemical Reactions

Front

Exothermic reaction

Back

A reaction that releases energy.

Front

Endothermic reaction

Back

A reaction that absorbs energy.

Front

What is a spontaneous reaction?

Back

A reaction that happens by itself.

Front

Can a chemical change be reversed?

Back

No

Answer explanation

A chemical reaction cannot be reversed. This is because chemical bonds are broken and rearranged between atoms.

Front

What product does iron and oxygen yield?
In other words, complete the following chemical reaction (word equation): iron + oxygen -->

Back

iron oxide, ironoxide

Answer explanation

When iron reacts with oxygen, it will yield iron oxide.

iron + oxygen --> iron oxide

This is actually the chemical reaction for rust.

Front

What is a synthesis reaction?

Back

When simpler substances combine together and react to form a new and complex substance

Front

Decomposition reaction

Back

When a complex substance breaks down into new and simpler substances

Front

What is a combustion reaction?

Back

fuel + oxygen --> water + carbon dioxide

Front

What type of reaction is this?

Back

a decomposition reaction

Answer explanation

this is a decomposition reaction, because one complex substance is broken down into simpler substances after a reaction takes place

Front

What type of reaction is this?

Back

a combustion reaction