Question

What are the products of this reaction: $ FeS + HCl $ ?

Answer 1

Hint: When any two chemicals react together to form a product then that is written in the form of a chemical reaction which takes place only when the amount of energy that is required to form a product is there. If the reactants do not have a sufficient amount of energy, then the formation of the product will not take place.

Complete step-by-step answer:
Now, here, in this question, it is asked what products will be formed when $ FeS $ will react with $ HCl $ .
So, here we are given $ FeS $ and $ HCl $ , $ FeS $ is known as ferrous sulphide which is a black solid and is insoluble in water. It is synthesised when Iron reacts with Sulphur:
 $ Fe + S \to FeS $
In its structure, we have octahedral Iron centres and trigonal Sulphides.
 $ HCl $ is known as hydrochloric acid which is an aqueous colourless solution with a very pungent smell and it is also present in our stomach to provide an acidic environment. It can be synthesised when the Chlorine molecule reacts with the Hydrogen molecule:
 $ {H_2} + C{l_2} \to 2HCl $
Now, let’s see what product will be formed when both of these chemicals will combine:
 $ FeS + 2HCl \to {H_2}S + FeC{l_2} $
The products which are formed is known as hydrogen sulphide and iron chloride. The reaction which is taking place here is known as the double displacement reaction.

Therefore, the products which are formed in this reaction are Hydrogen Sulphide ( $ {H_2}S $ ) and Iron Chloride ( $ FeC{l_2} $ )

Note: Double displacement reaction is a reaction in which $ 2 $ compounds react together to form $ 2 $ new compounds by replacing their ions with each other. Its general reaction can be written as: $ AB + CD \to AD + CB $