Question

What is a balanced equation?

Answer 1

1. Balanced chemical equations involve an equal number of atoms on both sides of the equation. It gives the least number of reactants required to form the products.
2. For example- The following equation shows the formation of a water molecule (${\mathrm{H}}_2\mathrm{O}$) from hydrogen (${\mathrm{H}}_2$) and oxygen (${\mathrm{O}}_2$). It is a balanced equation and it contains 4 atoms of hydrogen and two atoms of oxygen on both sides.

$2{\mathrm{H}}_2\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\underset{}{\to }2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$