a: red hot iron fillings with Steam
b: heated copper (ii) oxide with ammonia gas
equation to represent the reaction above stated
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A)
Reaction takes place only when the iron is red hot and water is in the form of steam. The reaction takes place as a reduction reaction in which Magnetite is formed and hydrogen gas is liberated.
B)
When gaseous ammonia is passed over solid copper(II)oxide at high temperatures, nitrogen gas is formed. Also This N2 gas is not pure as it would be in the heating of NaN3 like compounds.
Explanation:
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