Question

Name the different forms of energy required for breaking down the reactants in decomposition reaction.

Answer 1

Answer:

During decomposition of a reactant, the reactant need energy to break the reactants to produce products. The energy can be in light or heat or electricity energy. If the Decomposition reaction require heat energy, then it is called as thermal decomposition reaction.

Answer 2

(1.) Decomposition on heating

Calcium carbonate when heated gives quicklime (CaO) and carbon dioxide

$CaCO _{3 } →CaO + CO _{2}$

(2.) Decomposition by light

Silver chloride decomposes to silver and chlorine in presence of sunlight

$2AgCl→2Ag+Cl _{2}$

(3). Decomposition by electricity

Water on electrolysis gives hydrogen and oxygen

$2H_{2}</p><p>O→2H_{2} +O _{2}$