Question

Determine whether or not the equation below is balanced. If it isn’t balanced, write the balanced form. Also, identify the reactant(s) and product(s) in this equation. Finally, label this as one of the five types of reactions: combination, decomposition, substitution, double replacement, or reversible.
Zn + HCI ---->ZNCI2 + H2

Answer 1

Hi,

Here is your answer

Given:

Zn+HCl⇒ZnCl2+H2

Solution:

To balance this equation, first balance atoms other than hydrogen.

From this equation, we can see that a chlorine atom is less on the left hand side of the equation.

Balancing it we get,

Zn+2HCl⇒ZnCl2+H2

Here we can see that hydrogen automatically gets balanced.

The reactants are the compounds present in the left hand side of the equation.

So, the reactants are Zn and HCl

The products are the compunds present in the right hand side of the equation.

So, the products are ZnCl2 and H2

This is a type of single displacement reaction since Zinc being more reactive than hydroge displaces it from its ionic solvent.

This is also an irreversible reaction since the products do not give back the reactants.

hope this helps you.