Consider the reaction when aqueous solutions of potassium nitrate and chromium(II) iodide are combined. The net ionic equation for this reaction is:

Question

anonymous · Answer

really need help

aaronq · Answer

can you predict the products?

anonymous · Answer

i got 2NO3^- +Cr^2+ > Cr^2+ 2NO3^-

aaronq · Answer

hm is $Cr(NO_3)_2$  soluble?

anonymous · Answer

it is

aaronq · Answer

so there is no reaction. 

potassium nitrate + chromium(II) iodide  -> N.R.

anonymous · Answer

so i would submit black

anonymous · Answer

blank

aaronq · Answer

i would write "no reaction"

anonymous · Answer

okay so for this one Consider the reaction when aqueous solutions of iron(III) acetate and chromium(III) sulfate are combined. The net ionic equation for this reaction is:

anonymous · Answer

my final answer is 2Fe^3+ + Cr^3+ > Fe^3+ + 2Cr^3+

aaronq · Answer

nope, you wont ever have 2 metals as net products (ions are always soluble in water).

anonymous · Answer

how is there water in this reaction, i dont understand

aaronq · Answer

all of these reactions are occurring in a solution where water is the solvent

anonymous · Answer

acetate is soluble and so is sulfate that is all crossed out right

aaronq · Answer

it's kind of a tricky question because $FeSO_4$, where $Fe^{2+}$, is soluble but  $Fe_2(SO_4)_3$, where $Fe^{3+}$, is not.

anonymous · Answer

oh okay so i dont separate those?

aaronq · Answer

nope that would be a precipitate.

anonymous · Answer

and Cr2(SO4)3 would precipitate too right

aaronq · Answer

when you mix it in water (in the solution) it will break apart into $Cr^{3+}$ and sulfate ions, so you can assume that it's soluble.

anonymous · Answer

okay so theres no reactions since everything separated is soluble

aaronq · Answer

the reaction is between $Fe^3+$ and $SO^{2-}_2$

anonymous · Answer

my answer is Fe^3+ + SO4^2- >Fe2(SO4)3

aaronq · Answer

yup

anonymous · Answer

really wow thank you

anonymous · Answer

are they aqueous state

aaronq · Answer

on the left side, yes. on the right it's a precipitate, so solid.

anonymous · Answer

its not 2Fe^3+ on the left?

aaronq · Answer

oh yes, sorry i didn't even check for that, it should be
2Fe^3+ + 3SO4^2- >Fe2(SO4)3

anonymous · Answer

it was wrong

anonymous · Answer

aaronq!!!?

aaronq · Answer

oh really? i'm sorry, i'm pretty sure it's insoluble though :S

abb0t · Answer

http://www.ausetute.com.au/solrules.html

anonymous · Answer

thank you abb0t thats is really helpful