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Balance the following chemical equations...

Balance the following chemical equations and state whether they are exothermic or endothermic :
(i) `Na+H_(2)O rarr NaOH+H_(2)`
(ii) `FeSO_(4) rarr Fe_(2)O_(3)+SO_(2)+SO_(3)`

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Verified by Experts

(i) `2Na+2H_(2)O rarr 2NaOH+H_(2)`
It is an exothermic reaction.
(ii) `2FeSO_(4)(S) rarr Fe_(2)O_(3)+SO_(2)(g)+SO_(3)(g)`
It is an endothermic reaction.
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