which represents a double replacement reaction and would occur?\no nh4no3(aq) + agclo3(aq) → agno3(aq) +…

which represents a double replacement reaction and would occur?\no nh4no3(aq) + agclo3(aq) → agno3(aq) + nh4clo3(aq)\no na2co3(aq) + cacl2(aq) → 2nacl(aq) + caco3(s)\no naf(aq) + kcl(aq) → nacl(aq) + kcl(aq)\no nacl(aq) → na+(aq) + cl-(aq)

which represents a double replacement reaction and would occur?\no nh4no3(aq) + agclo3(aq) → agno3(aq) + nh4clo3(aq)\no na2co3(aq) + cacl2(aq) → 2nacl(aq) + caco3(s)\no naf(aq) + kcl(aq) → nacl(aq) + kcl(aq)\no nacl(aq) → na+(aq) + cl-(aq)

Answer

Explanation:

Step1: Define double - replacement reaction

A double - replacement reaction has the general form (AB + CD\rightarrow AD+CB), where the cations and anions of two ionic compounds exchange places.

Step2: Analyze each option

  • For (NH_4NO_3(aq)+AgClO_3(aq)\rightarrow AgNO_3(aq)+NH_4ClO_3(aq)), all products are aqueous, no precipitate, gas or water is formed, so the reaction does not occur significantly.
  • For (Na_2CO_3(aq)+CaCl_2(aq)\rightarrow 2NaCl(aq)+CaCO_3(s)), it is a double - replacement reaction ((Na) and (Ca) exchange anions), and (CaCO_3) is a precipitate, so the reaction occurs.
  • For (NaF(aq)+KCl(aq)\rightarrow NaCl(aq)+KCl(aq)), no new products are formed in a non - trivial way, and no precipitate, gas or water is produced, so the reaction does not occur.
  • For (NaCl(aq)\rightarrow Na^{+}(aq)+Cl^{-}(aq)), this is a dissociation reaction, not a double - replacement reaction.

Answer:

(Na_2CO_3(aq)+CaCl_2(aq)\rightarrow 2NaCl(aq)+CaCO_3(s))