Balance the following chemical equations and state whether they are ex – InterviewSolution

InterviewSolution

1.

Balance the following chemical equations and state whether they are exothermic or endothermic :(i) Na + H2O → NaOH + H2(ii) FeSO4 → Fe2O3 + SO2 + SO3

Answer»

(i) 2Na + 2H₂O → 2NaOH + H₂

It is an exothermic reaction.

(ii)2FeSO₄(s) → Fe₂O₃ + SO₂(g) + SO₃(g)

It is an endothermic reaction.

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