Question

The net ionic equation for the dissolution of zinc metal in aqueous hydrobromic acid is ________.

Answer 1

`Zn(s)+2H^+(aq)\rightarrow Zn^(2+)(aq)+H_2(g)`

Step-by-step explanation:

Hello!

In this case, since writing the net ionic equation implies the complete molecular equation, we should start by:

`Zn(s)+2HBr(aq)\rightarrow ZnBr_2(aq)+H_2(g)`

Next, we represent the ionization of the aqueous species:

`Zn(s)+2H^+(aq)+2Br^-(aq)\rightarrow Zn^(2+)(aq)+2Br^-(aq)+H_2(g)`

Whereas the spectator ions, those at both reactants and products are cancelled out so the net ionic equation is obtained:

`Zn(s)+2H^+(aq)\rightarrow Zn^(2+)(aq)+H_2(g)`

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