Question

How does zinc react with concentrated hydrochloric acid?

Answer 1

It could be whatever you want it to be. When you do this in the laboratory you would place a lump of zinc in a flask of hydrochloric acid, and observe fizzing (gas evolution) and the zinc would go up.

Explanation:

`Zn(s) + 2HCl(aq) rarr ZnCl_2(aq) + H_2(g)uarr`

The (s) and (g) stand for `"solid"` and `"gas"`. The (aq) stands for the `"aquated"` ion. For `Zn^(2+)(aq)`, this is probably `[Zn(OH_2)_6]^(2+)`, a zinc ion surrounded by, AQUATED by, 6 water molecules.