what is difference between double displacement reaction and combination reaction
Answers
Answer:
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
Answer:
Reaction in which 2 or more elements or compounds combine together to form a single compound are called combination reaction.
Eg: 2Mg+O2-------->2MgO
Reaction in which 2 ionic compounds in the solution react with exchange of their ions to form new compounds are called double displacement reaction.
Eg: Na2SO4+BaCl2+----->BaSO4+2NaCl
Explanation:
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