Question

decomposition reaction require energy either in the form of heat,light or electricity for breaking down reactions . write one equation for each type of decomposition reaction where heat , light or electricity is used as a form of energy .​

Answer 1

Answer:

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

O→2H

2

+O

2

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Answer 2

Answer:

Explanation:

 heat--caco3--cao+co2

light--agcl--ag+ cl2

electricity--h2o--h2+o2

When a single reactant breaks to produce two or more products, known as decomposition reaction.

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.

For example:

If the Decomposition reaction require energy in the light form is known as reaction of photochemical decomposition.

For example:

If the Decomposition reaction require energy in the form of electricity is known as electrolytic decomposition reaction.

For example: