Home > Chemistry > Chemical Reactions and Equations

How do you write an equation for the reaction between zinc metal and hydrochloric acid (aqueous) producing zinc chloride (aqueous) and hydrogen gas?

Answer 1

#Zn(s)+2HCl(aq)->ZnCl_2(aq)+H_2(g)#

The net reaction is #Zn(s)+2H^+(aq) ->Zn^(2+)(aq)+H_2(g)#
The #Cl^-# ions are spectators - they don't change.

This experiment includes the reaction of zinc with hydrochloric acid. The experiment compares reactivity of three metals; magnesium, zinc and copper. The video includes a discussion of writing balanced equations for all the observed reactions.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Peyton Adams

ZnCl2(aq) + H2(g) → Zn(s) + 2HCl(aq)

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.