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

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Solution

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:
${CaCO}_{3} (s) \overset{Heat}{\to} CaO (s) + {CO}_{2} (g)$
$H_{2} {CO}_{3} (aq) \overset{}{\to} H_{2} O (l) + {CO}_{2} (g)$

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