# What type of chemical reaction do two or more substances combine to form one substance?

Nov 24, 2017

It is a synthesis reaction, also called a combination reaction.

#### Explanation:

Examples:

Synthesis of water

$\text{2H"_2("g") + "O"_2("g")}$$\rightarrow$$\text{2H"_2"O(l)}$

Synthesis of sodium chloride (table salt)

$\text{2Na(s) + Cl"_2("g")}$$\rightarrow$$\text{2NaCl(s)}$