Question

Balance this chemical equation. Choose "blank" for the box if no other coefficient is needed. Writing the symbol implies "1." HCl + Zn → ZnCl2 + H2

Answer 1

2hcl+zn=ZNCL2+H2 ONLY HCL HAS COEFFICIENT

Answer 2

Explanation:

A chemical equation that contains equal number of atoms on both reactant and product side is known as a balanced equation.

For example, $HCl + Zn \rightarrow ZnCl_{2} + H_{2}$

Number of atoms present on reactant side are as follows.

H = 1

Cl = 1

Zn = 1

Number of atoms present on product side are as follows.

H = 2

Cl = 2

Zn = 1

Therefore, to balance this equation we multiply HCl on reactant side by 2.

Hence, the balanced chemical equation is as follows.

               $2HCl + Zn \rightarrow ZnCl_{2} + H_{2}$