Write the complete balanced chemical equation for the given reactions.
(a) 2 Fe(s) + H2O(g) give rise to
(b) 2 Ca(s) + H2O(1) give rise to
(c) Cu2O + Cu2S (In presence of heat) give rise to
(d) Fe2O3(s) + Al(s) give rise to

Solution -
balanced chemical reaction are-
a) 3Fe(s) +4H2O(g) → Fe3O4(s) +4H2(g)
b) Ca(s) + 2H2O(l) → Ca(OH)2(s) +H2(g)
c)2Cu2O(s) +Cu2(s)Δ 6Cu(s) + SO2(g)
d) Fe2O3(s) +2Al(s)  →Al2O3(s) +2Fe(s)

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