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Which of the statements below best describes the following reaction? HCl(aq) + KOH(aq) -> KCl(aq) + H2O(l)a. Hydrochloric acid and potassium hydroxide solutions react to produce potassium chloride solution and water. b. Hydrochloric acid and potassium hydroxide solutions react to produce potassium chloride and water. c. Aqueous solutions of hydrochloric acid and potassium hydroxide react to produce aqueous potassium chloride and water. d. An acid + a base react to produce a salt and water. e. Hydrochloric acid and potassium hydroxide produce potassium chloride and water.

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Answer:

  • c. Aqueous solutions of hydrochloric acid and potassium hydroxide react to produce aqueous potassium chloride and water.

Explanation:

The reaction is represented by the chemical equation

  • HCl(aq) + KOH(aq) → KCl(aq) + Hâ‚‚O(l)

The letters "aq" in parenthesis, next to the chemical formula of a compound, is used to indicate "aqueous" phase. It means that the compound is dissolved in water or, what is the same, it is an aqueous solution.

Hence, the choice C. is the best representation or description of the given reaction:

The left side or reactant side is:

       HCl(aq)                        +                         KOH(aq)                                    

               ↑                          ↑                                   ↑                          

aqueous solution of       react                 aqueous solution of          

hydrochloric acid             with                 potassium hydroxide

The right side or product side is:

      KCl(aq)                            +                                 H₂O(l)                                  

              ↑                              ↑                                   ↑          

aqueous                               and                             water

potassium chloride                  

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