I need help balencing this redox equation in NET IONIC form:
Zn(s) + 2 HCl(aq) --> ZnCl2(aq) + H2(g)
normally I would just do:
Zn + 2H+ --> Zn(2+) + H2
but our teacher wants us to use H3O+ instead of H+
So now I'm stuck with this:
Zn + H3O+ --> Zn(2+) + H2
and I don't know how to balance it.
thanks!!
2006-09-04 09:59:19 · 4 answers · asked by Lauren 1 in Science & Mathematics ➔ Chemistry
Nearly there! Just think of the H3O+ as one water molecule and one H+. So since you need 2 H+ then take 2H3O+
Zn + 2H3O+ --> Zn(2+) + H2 + 2H2O
2006-09-04 10:09:05 · answer #1 · answered by lykovetos 5 · 0⤊ 0⤋
Exactly the same way you balanced the first one. The reason why your teacher wants it in net ionic form because you need to picture that in a solution you wouldn't have H+ just floating around aimlessly in solution it would always float around as H30+
2006-09-04 10:05:27 · answer #2 · answered by Anonymous · 1⤊ 0⤋
your finnal reaction is missing H2O. Just break it up into Red-Ox, and cancel out the electrons.
Red: 2H3O+ + 2e- = H2 + 2H2O
Ox: Zn = Zn2+ + 2e-
Redox Reaction:Zn(s) + 2H3O+(aq) = Zn2+(aq) + H2(g) + 2H20
I think thats correct. I havent done it in years.
2006-09-04 10:36:51 · answer #3 · answered by Axel 2 · 0⤊ 0⤋
uh you might wanna use water to balance it out
2006-09-12 08:29:37 · answer #4 · answered by shiara_blade 6 · 0⤊ 0⤋