Question

Give two examples of chemical decomposition when a compound decomposes to form only compounds 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 compounds are:

${\mathrm{CaCO}}_3\left(\mathrm{s}\right)\stackrel{\mathrm{Heat}}{\to }\mathrm{CaO}\left(\mathrm{s}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right)$

${\mathrm{H}}_2{\mathrm{CO}}_3\left(\mathrm{aq}\right)\stackrel{}{\to }{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right)$