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Balance the reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1."
___ HCl + ___ Zn → ___ ZnCl 2 + ___ H 2

The options are 2, 3, 4, and blank.

Respuesta :

Answer: Option (a) is the correct answer.

Explanation:

The given equation is as follows.

       [tex]HCl + Zn \rightarrow ZnCl_{2} + H_{2}[/tex]

Number of atoms on reactant side are as follows.

  • H = 1
  • Cl = 1
  • Zn = 1

Number of atoms on product side are as follows.

  • H = 2
  • Zn = 1
  • Cl = 2

To balance the equation, multiply HCl by 2 on reactant side. Therefore, the balanced chemical equation is as follows.

       [tex]2HCl + Zn \rightarrow ZnCl_{2} + H_{2}[/tex]



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