Answer:
[tex]2Zn+2\text{HCl}\rightarrow2\text{ZnCl}+H_2[/tex]
Explanations:
According to the question, we are balancing the equation between the zinc element and hydrochloric acid as shown:
[tex]aZn+b\text{HCl}\rightarrow cZnCl+dH_2[/tex]
Next is to balance the chemical reaction by determining the coefficient
For the zinc element:
a = c
For the hydrogen element:
b = 2d
For the Chlorine element
b = c
Recall that d = b/2 = c/2
Substitute the coefficient into the reaction in terms of "c"
[tex]\begin{gathered} aZn+b\text{HCl}\rightarrow cZnCl+dH_2 \\ \text{cZn}+\text{cHCl}\rightarrow\text{cZnCl}+\frac{c}{2}H_2 \\ \text{Cancel out the constant '}c\text{'} \\ Zn+\text{HCl}\rightarrow\text{ZnCl}+\frac{1}{2}H_2 \\ \text{Multiply through by 2} \\ 2Zn+2\text{HCl}\rightarrow2\text{ZnCl}+H_2 \end{gathered}[/tex]
This gives a balanced chemical reaction for the reaction