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A 1.0-gram strip of zinc is reacted with hydrochloric acid in a test tube. The unbalanced equation below represents the reaction.

Zn(s) + HCl(aq) ==>H2(g) + ZnCl2(aq)

Balance the equation in your answer booklet for the reaction of zinc and hydrochloric acid, using the smallest whole-number coefficients. [1]

________ Zn(s) + ________ HCl(aq) ==>________ H2(g) + ________ ZnCl2(aq)

Sagot :

Leob735
The only coefficient is a 2 behind the reactant hydrochloride.

Answer: The balanced chemical equation for the reaction of zinc and hydrochloric acid is written below.

Explanation:

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.

Every balanced chemical equation follows law of conservation of mass.

The balanced chemical equation for the reaction of zinc and hydrochloric acid follows:

[tex]Zn(s)+2HCl(aq.)\rightarrow H_2(g)+ZnCl_2(aq.)[/tex]

By Stoichiometry of the reaction:

1 mole of zinc metal reacts with 2 moles of aqueous hydrochloric acid to produce 1 mole of hydrogen gas and 1 mole of aqueous zinc chloride solution.

Hence, the balanced chemical equation for the reaction of zinc and hydrochloric acid is written above.

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