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give maximum 3 examples each for exothermic and endothermic reaction.

like :- N2+O2---->2NO​

Sagot :

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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.

N2(g)+3H2(g)→2NH3(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.

2NH3 (g)+92.2kJ→

N2(g)+3H2(g)

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