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

A. 2H+(aq) + 2e− H2(g)
B. Fe(s) Fe2+(aq) + 2e−
C. 2Cl–(aq) Cl2(g) + 2e−
D. Fe2+(aq) + 2e− Fe(s)

Question

What oxidation half-reaction happens when iron reacts with hydrochloric acid?

 		A.	2H+(aq) + 2e−  H2(g)
 		B.	Fe(s)  Fe2+(aq) + 2e−
 		C.	2Cl–(aq)  Cl2(g) + 2e−
 		D.	Fe2+(aq) + 2e−  Fe(s)

vera_ewing · Answer

A.	2H+(aq) + 2e− ---> H2(g)
B.	Fe(s) ---> Fe2+(aq) + 2e−
C.	2Cl–(aq) ---> Cl2(g) + 2e−
D.	Fe2+(aq) + 2e− ---> Fe(s)

vera_ewing · Answer

@aaronq Can you please help me? 


@nechirwan

nechirwan · Answer

B.	Fe(s)  Fe2+(aq) + 2e−

vera_ewing · Answer

@nechirwan are you sure that's the anwser?

nechirwan · Answer

ya

vera_ewing · Answer

thank you @nechirwan