Chemistry, asked by Aasya, 1 year ago

Give 3 difference between combination and decomposition reaction.

Answers

Answered by myrakincsem
67
In composition reaction one product is formed from the combination of two or more substance this is also why it is called as composition reaction.
in this simple compound result in formation of complex compound .
This reaction result in bonding of atoms which result in a single product.

In decomposition  more then one product is formed from the breakage of one reactant.
In this reaction bonds are broken between the compound result in production of more product from that one.
In this reaction complex compound ultimately result in simple compound.
 
Answered by harshranaji
9

Answer:

Explanation:

Hey friend !

Combination reaction:-

It is a chemical reaction in which two or more reactants combine with each other to form a new single product.

It releases  heat during the chemical reaction.

This means that it is exothermic .

Examples :-

1) 2H₂ + O₂ ---->2H₂O    

2) 2Mg + O₂ --->2MgO

Decomposition reaction:-

It is a chemical reaction in which one reactant  breaks down into simpler compounds.

It absorbs heat from the surroundings during the chemical reaction.

IN other words , it is endothermic .

Examples :-

CaCO₃ ===> CaO + CO₂

2H₂O ===> 2H₂ + O₂

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