Write out a balanced equation for reaction of solid zinc with hydrochloric acid (HCl(aq)). Indicate all states of matter in your equation.
zinc(S) + hydrochloric acid(aq) ==> zinc chloride(aq) + hydrogen(g)
Zn(s) + HCl(aq) ==> ZnCl2(aq) + H2(g)
Then balance.
Zn(s) + 2HCl(aq) ==> ZnCl2(aq) + H2(g)
To write a balanced equation for the reaction of solid zinc with hydrochloric acid (HCl(aq)), we need to consider the chemical formula of zinc and hydrochloric acid.
The chemical formula for zinc is Zn, and the chemical formula for hydrochloric acid is HCl.
The reaction between zinc and hydrochloric acid produces hydrogen gas (H2) and zinc chloride (ZnCl2).
Now let's write the balanced equation, indicating the states of matter:
Zn (s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g)
In this equation, "s" indicates that zinc is in the solid state, "aq" indicates that hydrochloric acid and zinc chloride are dissolved in water (aqueous state), and "g" indicates that hydrogen gas is in the gaseous state.