Question

give an example each for exothermic,endothermic reaction. write it chemical equations.
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Answer 1

Answer:

Explanation:Exothermic reactions are those reactions in which heat is released.

Reactants→products+heat

For example, formation of ammonia from nitrogen and hydrogen is an exothermic reaction.

N  

2

​

(g)+3H  

2

​

(g)→2NH  

3

​

(g)+92.2kJ

Endothermic reactions are those reactions in which heat is absorbed.

Reactants+heat→products

For example, dissociation of ammonia into nitrogen and hydrogen is an endothermic reaction.

2NH  

3

​

(g)+92.2kJ→

N  

2

​

(g)+3H  

2

​

(g)