Question

What type of a reaction takes place when atoms or molecules rearrange to form new substances

Answer 1

A chemical reaction happens when the atoms or molecules rearrange to form a new substance

Answer 2

Explanation:

A reaction that bring changes in the chemical composition of its reactants then it is known as chemical reaction.

For example, $C + O_{2} \rightarrow CO_{2}$

When carbon and oxygen combine together then properties of both carbon and oxygen changes. Whereas properties of carbon dioxide is different from carbon and oxygen atom.