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using CER,identify the following reaction. Please type your answer and include 2 pieces of eviednece Na2S + HCI -> NaCI + H2S

1 answer

The reaction you provided is a double displacement reaction (also known as a double replacement or metathesis reaction).

Claim:

The reaction between sodium sulfide (Na2S) and hydrochloric acid (HCl) is a double displacement reaction.

Evidence:

  1. Reactants Exchange Ions: In this reaction, the sodium ions (Na⁺) from Na2S and the chloride ions (Cl⁻) from HCl exchange partners with the sulfide ions (S²⁻) forming hydrogen sulfide (H2S) and sodium chloride (NaCl). This is indicative of a double displacement reaction, where two compounds react and exchange components.

  2. Product Formation: The products formed, NaCl and H2S, are derived from the swapping of ions between the reactants. NaCl is an ionic compound formed from Na⁺ and Cl⁻, while H2S is a gaseous compound formed from H⁺ and S²⁻, further supporting the classification of the reaction as a double displacement.

The overall equation can be balanced as follows: Na2S + 2 HCl → 2 NaCl + H2S, confirming that the ions do indeed switch partners.