Question

What oxidation half-reaction happens when iron reacts with hydrochloric acid?

Answer 1

@asib1214 @sweetburger

Answer 2

Fe(s)+2HCl(aq)-->FeCl2(aq)+H2(g)
The oxidation state of an uncombined element is zero.
Fe(s)-->Fe+2(aq)
H+(aq)-->H2(g)
2Cl-(aq)-->2Cl-(aq)

Answer 3

@Abmon98 I'm not really sure what you're saying? How do I do half-reactions

Answer 4

From the equation written decide which was oxidized and reduced

Answer 5

The Cl was reduced the Fe was oxidized I think

Answer 6

yes that's right you are asking about the half reaction(oxidation)
now you know whats oxidized and the oxidation state of an uncombined element is zero but as the reaction progresses and FeCl2 forms Fe has an oxidation number of +2

Answer 7

so it would be Fe2+ + 2e- −-> Fe(s)

Answer 8

yes that's right but reverse because reactants come up first.

Answer 9

oh right got it

Answer 10

reverse equation*

Answer 11

thank you :)

Answer 12

your most welcome :D