Question

I) name the substance is formed when iron filings and sulphur powder are :-
a) strongly heated
b) no heat given

2)if dilute HCl is added to above substance is formed then name the gases evolved and write down their two properties for each ​

Answer 1

Answer:

On heating the reaction mixture, the sulfur melts and reacts with the iron exothermically to form iron(II) sulfide. ... The signs that a chemical reaction occurs are: the glow, and the fact that a new substance (black iron sulfide) is formed which cannot be separated by using a magnet.

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