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Solution: A hydrochloric acid solution will neutralize a sodium hydroxide solution. Look at the following molecular views showing one beaker of HCl and four beakers of NaOH. Which NaOH beaker will just neutralize the HCl beaker? Begin by writing a balanced chemical equation for the neutralization reaction.

Problem

A hydrochloric acid solution will neutralize a sodium hydroxide solution. Look at the following molecular views showing one beaker of HCl and four beakers of NaOHA beaker containing a solution of four green spheres labeled Cl- and four smaller white spheres labeled H+.Two beakers labeled a and b. Beaker a contains a solution of two purple spheres labeled Na+, and two molecules composed of a red sphere and smaller white sphere combined labeled OH-. Beaker b contains a solution of four purple spheres and four red-white molecules.Two beakers labeled c and d. Beaker c contains a solution of five purple spheres and five molecules composed of a red sphere and smaller white sphere combined. Beaker d contains a solution of eight purple spheres and eight molecules composed of a red sphere and smaller white sphere combined.

Which NaOH beaker will just neutralize the HCl beaker? Begin by writing a balanced chemical equation for the neutralization reaction.

Solution

Begin by writing a balanced chemical equation for the neutralization reaction.

HCl → strong binary acid
NaOH → group 1A or group 2A ion paired with OH- → strong base

Strong acid and strong base completely dissociate to their ions 

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