Question

define a decomposition reaction and give an example of the same.

Answer 1

DECOMPOSITION REACTION:
©Decomposition Reaction means those reactions in which compound splits up into two or more simpler substances.
©Decomposition reactions are usually carried out by heat,light or electricity. Be cause, Heat,light and electricity can break down compounds into simpler substances.
©Note: Decomposition Reaction is just opposite to Composition Reaction.

Example:
CaCO³(g) ----> CaO(s) + CO²(g)
Calcium Calcium Carbon
carbonate oxide dioxide

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Answer 2

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Define a decomposition reaction and give an example of the same.

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A decomposition reaction can be defined as a chemical reaction in which one reactant breaks down into two or more products.

General Reaction Format

The general format of a decomposition reaction is provided below.

AB -> A + B

Where AB is the parent molecule (reactant) and A & B are the product molecules.

Decomposition reactions happen all around us, but we often don’t notice them. Some common examples of decomposition reactions are provided below.

❥The decomposition of carbonic acid in soft drinks, which can be represented by the chemical equation H2CO3 → H2O + CO2

❥The electrolysis of water to yield hydrogen and oxygen.