What type of reaction is:
\[ \text{FeS} + 2 \text{HCl} \rightarrow \text{FeCl}_2 + \text{H}_2\text{S} \]
Answer (3)
Double replacement means a reaction that includes two molecules that each have two different ions. After the reaction, the ions pairs have switched, which is what is shown in the above equation.
A single replacement would be a very simple reactions such as:
2Fe(II)S + Ov2^2- -> 2Fe(II)O + 2S^2-
A decomposition reaction would be shown as this:
2NaCl -(dissolve in water)> 2Na^+ + Clv2^-
A synthesis reaction could be the exact opposite:
2Na^1+ + Clv2^1- -> 2NaCl
The reaction FeS + 2 HCl > FeCl2 + H2S is a double displacement reaction involving the formation of new compounds, with the production of H2S gas indicating a gas evolution reaction. Moreover, hydrogen sulfide acting as a reducing agent in acidic solutions classifies the reaction as a redox reaction. ;
The given reaction is a double replacement reaction, where the components of two ionic compounds exchange places, producing new compounds. In this specific reaction, iron(II) sulfide (FeS) and hydrochloric acid (HCl) react to form iron(II) chloride (FeCl₂) and hydrogen sulfide (H₂S). This type of reaction typically occurs when the reactants are ionic compounds in an aqueous solution.
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