Question

Give two examples of chemical decomposition when a compound decomposes to form only elements by writing chemical equations.

Answer 1

Chemical decomposition: The reactions in which a compound breakdown into two or more simpler substances by the action of heat, light or electricity, is known as chemical decomposition.

• Two examples of chemical decomposition when a compound decomposes to form only elements are:

$2\mathrm{AgCl}\left(\mathrm{s}\right)\stackrel{\mathrm{Light}}{\to }2\mathrm{Ag}\left(\mathrm{s}\right)+{\mathrm{Cl}}_2\left(\mathrm{g}\right)$

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