Respuesta :

Combination: Joining of two different substances to form a more complex substance.

Decomposition: Breaking of a compound into two or more products.

I HOPE THIS HELPS! :3

Explanation:

When in a chemical reaction either two or more number of elements or compounds combine together to result in the formation of a single compound then they are known as combination reactions.

For example, [tex]2Na(s) + Cl_{2}(g) \rightrarrow 2NaCl(s)[/tex]

On the other hand, when in a chemical reaction a single compound is able to produce two or more number of products then its is known as a decomposition reaction.

For example, [tex]CuCl_{2} \rightarrow Cu + Cl_{2}[/tex]