Answer:
<u>Fe2S3 + 6HCl → 3H2S + 2FeCl3 is a double-displacement reaction</u>
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Explanation:
Step 1: The balanced equation
Fe2S3 + 6HCl → 3H2S + 2FeCl3
Step 2:
<em>Decomposition: </em>This<em> </em>is a reaction in which a compound breaks down into two or more simpler substances. Most decomposition reactions require an input of energy in the form of heat, light, or electricity.
The general form of a decomposition reaction is: AB→A+B
In our case, <u>this is not a decomposition reaction.</u>
<em>Synthesis</em><em>: This is</em> a type of chemical reaction in which two or more simple substances combine to form a more complex product. The reactants may be elements or compounds, while the product is always a compound.
The general form of a decomposition reaction is: A + B → AB
In our case, <u>this is not a synthesis reaction.</u>
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Single-displacement reaction: This is a reaction in which one element replaces a similar element in a compound. The general form of a single-replacement (also called single-displacement) reaction is:
A+BC→AC+B
In our case, <u>this is not a single-displacement reaction.</u>
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Double - displacement reaction: This is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds. The general form of a double-replacement (also called double-displacement) reaction is:
AB+CD→AD+B
In this reaction, A and C are positively-charged cations, while B and D are negatively-charged anions. Double-replacement reactions generally occur between substances in aqueous solution. In order for a reaction to occur, one of the products is usually a solid precipitate, a gas, or a molecular compound such as water.
In our case: There occurs a duble replacement between Fe^3+ and S^2- with H+ and Cl-.
<u>Fe2S3 + 6HCl → 3H2S + 2FeCl3 is a double-displacement reaction</u>
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