17. In a chemical analysis, a solution of dichromate ions is reacted with an acidic solution of iron

(II) ions. The products formed are iron (III) and chromium (III) ions as shown by the

following skeleton equation:

Fe²+ + Cr₂0₂²-

(aq)

Balance the equation above using half-reactions.

(aq)

Fe³+ + Cr³+

(aq)

(aq)