Answer:
A. Zinc (Zn) reacting with hydrochloric acid (HCl)
Explanation:
The reaction of Zinc with hydrochloric acid is an irreversible chemical process.
What makes a reaction reversible;
- it must be involved in reversible chemical processes, no matter how small the extent of the reversibility.
- the rate of forward reaction must be equal to the backward one.
So, hydrochloric acid when reacting with Zinc will give a complete chemical change that will go into completion.
