# Synthesis Reactions Complete and balance: {eq}1.\ Na + O_2 \rightarrow\\ 2.\ Al + Br_2 \rightarrow\\ 3.\ Cl_2 + Mg \rightarrow {/eq}

## Question:

Synthesis Reactions

Complete and balance:

{eq}1.\ Na + O_2 \rightarrow\\ 2.\ Al + Br_2 \rightarrow\\ 3.\ Cl_2 + Mg \rightarrow {/eq}

## Balanced Reactions:

When we use suitable coefficients for the reactants and products of a chemical reaction, such that the number of atoms of every element is the same on both sides of the equation, we call the reaction a balanced reaction. The coefficients represent the ratio by the number of moles of the reactants used in relation to each other and to the products formed.