[purpleaurora]

How do you go about answering this question?

Acidic solution of potassium dichromate is added to a solution of iron(II) nitrate

I started out with K2Cr2O7 + Fe(NO3)2

 I am suppose to find the net ionic equation, but I do not know the balanced equation even... Could someone help me?
It is a REDOX reaction btw

THANKS A BUNCH!

[AWK]

Without  strong acid (usually H₂SO₄) nothing happens.

[purpleaurora]

 But this is a past AP free response question in chemistry, and they were able to come up with something.... this is a REDOX reaction, but I do not know how they arrived at the answer

[Cr2O7]2-  + [Fe2+] + [H+]  [Fe3+] + [Cr3+] + H2O

[AWK]

Now it is correctly presented.

Start reading from:
http://www.chembuddy.com/?left=balancing-stoichiometry&right=half-reactions-method