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Which of the following is a product when a solution of MgCl2(aq) is mixed with a solution of Pb(NO3)2(aq)?

a. PbCl2(aq)
b. PbCl2(s)
c. Pb(NO3)2(s)
d. MgCl2(s)
e. Mg(NO3)2(s)

Respuesta :

Answer: The product formed in the solution is [tex]PbCl_2(s)[/tex]

Explanation:

Double displacement reaction is defined as the reaction in which exchange of ions takes place.

[tex]AB+CD\rightarrow AD+CB[/tex]

The chemical equation for the reaction of magnesium chloride and lead nitrate follows:

[tex]MgCl_2(aq.)+Pb(NO_3)_2(aq.)\rightarrow PbCl_2(s)+Mg(NO_3)_2(aq.)[/tex]

By Stoichiometry of the reaction:

1 mole of aqueous magnesium chloride reacts with 1 mole of aqueous lead nitrate to produce 1 mole of solid lead chloride and 1 mole of aqueous magnesium nitrate

Hence, the product formed in the solution is [tex]PbCl_2(s)[/tex]

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