Question

46. Write the molecular equation for the following word equation.
$\mathrm{Aluminium}+\mathrm{Oxygen}\to \mathrm{Aluminium}\mathrm{oxide}$

Answer 1

When aluminum reacts with oxygen, it produces aluminum oxide (Al₂O₃).

Therefore, the molecular equation for the reaction is,

$\underset{\mathrm{Aluminium}}{\mathrm{Al}\left(\mathrm{s}\right)}+\underset{\mathrm{Oxygen}}{{\mathrm{O}}_2\left(\mathrm{g}\right)}\to \underset{\mathrm{Aluminium}\mathrm{Oxide}}{{\mathrm{Al}}_2{\mathrm{O}}_3\left(\mathrm{s}\right)}$

After balancing the above reaction, the balanced chemical equation can be written as:

$\underset{\mathrm{Aluminium}}{4\mathrm{Al}\left(\mathrm{s}\right)}+\underset{\mathrm{Oxygen}}{3{\mathrm{O}}_2\left(\mathrm{g}\right)}\to \underset{\mathrm{Aluminium}\mathrm{Oxide}}{2{\mathrm{Al}}_2{\mathrm{O}}_3\left(\mathrm{s}\right)}$