What is combination reaction and decomposition reaction?
Answers
Answer:
When two or more substances( elements or compounds) combine to form a single product, it is called combination reaction.
Ex:- C+O2= CO2
When a single substance breaks down to form two or more substances , it is called decomposition reaction.
Combination reaction /Decomposition reaction
A reaction in which two or more reactants combine together to form one single product. Ex. A+B------> AB A reaction in which a single reactant breaks down to give elements or simpler compounds.AB---->A+B
It is mostly exothermic in nature. Heat is released during reaction It is mostly endothermic.It require some kind of energy like heat , light or electricity to proceed.
For example : 2H2+O2→2H2O For example: 2H2O−→−−−−−−−−−−−in presence of electricity 2H2 + O2